diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-390.157.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-390.157.ebuild
index ef1d957c063a6..c9d1e9d417bd8 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-390.157.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-390.157.ebuild
@@ -4,8 +4,8 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 multilib readme.gentoo-r1
-inherit systemd toolchain-funcs unpacker user-info
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 multilib
+inherit readme.gentoo-r1 systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.1
 NV_URI="https://download.nvidia.com/XFree86/"
@@ -342,7 +342,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GLX_MODULE_SYMLINK|XMODULE_NEWSYM)
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-470.256.02-r2.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-470.256.02-r2.ebuild
index 54648a15bfe3a..4db46f5d0f08c 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-470.256.02-r2.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-470.256.02-r2.ebuild
@@ -4,8 +4,8 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 multilib readme.gentoo-r1
-inherit systemd toolchain-funcs unpacker user-info
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 multilib
+inherit readme.gentoo-r1 systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.6
 NV_URI="https://download.nvidia.com/XFree86/"
@@ -312,7 +312,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			VDPAU_SYMLINK) m[4]=vdpau/; m[5]=${m[5]#vdpau/};; # .so to vdpau/
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-535.216.01-r1.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-535.216.01-r1.ebuild
index d8723f5691d5c..cb2c2fbab09fe 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-535.216.01-r1.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-535.216.01-r1.ebuild
@@ -4,8 +4,8 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 multilib readme.gentoo-r1
-inherit systemd toolchain-funcs unpacker user-info
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 multilib
+inherit readme.gentoo-r1 systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.12
 NV_URI="https://download.nvidia.com/XFree86/"
@@ -375,7 +375,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GBM_BACKEND_LIB_SYMLINK) m[4]=../${m[4]};; # missing ../
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-550.127.05-r1.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-550.127.05-r1.ebuild
index 16ff0bb4009d0..028c5a8e171b7 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-550.127.05-r1.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-550.127.05-r1.ebuild
@@ -4,7 +4,7 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 readme.gentoo-r1
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 readme.gentoo-r1
 inherit systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.12
@@ -367,7 +367,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GBM_BACKEND_LIB_SYMLINK) m[4]=../${m[4]};; # missing ../
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-550.135.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-550.135.ebuild
index 490ae39a23d07..c1a0d55218640 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-550.135.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-550.135.ebuild
@@ -4,7 +4,7 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 readme.gentoo-r1
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 readme.gentoo-r1
 inherit systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.12
@@ -371,7 +371,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GBM_BACKEND_LIB_SYMLINK) m[4]=../${m[4]};; # missing ../
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-550.40.81.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-550.40.81.ebuild
index b0093698b9827..aff518c359eb0 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-550.40.81.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-550.40.81.ebuild
@@ -4,7 +4,7 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 readme.gentoo-r1
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 readme.gentoo-r1
 inherit systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.11
@@ -369,7 +369,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GBM_BACKEND_LIB_SYMLINK) m[4]=../${m[4]};; # missing ../
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-565.57.01-r3.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-565.57.01-r3.ebuild
index aa6c1c5a6c4e9..19effc3aca289 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-565.57.01-r3.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-565.57.01-r3.ebuild
@@ -4,7 +4,7 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 readme.gentoo-r1
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 readme.gentoo-r1
 inherit systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.12
@@ -376,7 +376,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GBM_BACKEND_LIB_SYMLINK) m[4]=../${m[4]};; # missing ../
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-565.77.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-565.77.ebuild
index dfaa0bc00c626..f95de3f867f4e 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-565.77.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-565.77.ebuild
@@ -4,7 +4,7 @@
 EAPI=8
 
 MODULES_OPTIONAL_IUSE=+modules
-inherit desktop flag-o-matic linux-mod-r1 readme.gentoo-r1
+inherit desktop eapi9-pipestatus flag-o-matic linux-mod-r1 readme.gentoo-r1
 inherit systemd toolchain-funcs unpacker user-info
 
 MODULES_KERNEL_MAX=6.12
@@ -380,7 +380,8 @@ documentation that is installed alongside this README."
 
 		case ${m[2]} in
 			MANPAGE)
-				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}
+				pipestatus || die
 				continue
 			;;
 			GBM_BACKEND_LIB_SYMLINK) m[4]=../${m[4]};; # missing ../