diff --git a/app-emulation/libvirt/libvirt-10.0.0-r4.ebuild b/app-emulation/libvirt/libvirt-10.0.0-r4.ebuild
index a3f65a6e07254..b7393540d081b 100644
--- a/app-emulation/libvirt/libvirt-10.0.0-r4.ebuild
+++ b/app-emulation/libvirt/libvirt-10.0.0-r4.ebuild
@@ -328,7 +328,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-10.1.0-r3.ebuild b/app-emulation/libvirt/libvirt-10.1.0-r3.ebuild
index 925e76ae0bc63..01a4a6d58b3a5 100644
--- a/app-emulation/libvirt/libvirt-10.1.0-r3.ebuild
+++ b/app-emulation/libvirt/libvirt-10.1.0-r3.ebuild
@@ -327,7 +327,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-10.2.0-r2.ebuild b/app-emulation/libvirt/libvirt-10.2.0-r2.ebuild
index 66eef4f76550d..4ae9193487c2e 100644
--- a/app-emulation/libvirt/libvirt-10.2.0-r2.ebuild
+++ b/app-emulation/libvirt/libvirt-10.2.0-r2.ebuild
@@ -326,7 +326,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-10.3.0-r3.ebuild b/app-emulation/libvirt/libvirt-10.3.0-r3.ebuild
index 4d08d7ffec5b5..daa64a693d6fe 100644
--- a/app-emulation/libvirt/libvirt-10.3.0-r3.ebuild
+++ b/app-emulation/libvirt/libvirt-10.3.0-r3.ebuild
@@ -327,7 +327,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-10.5.0-r1.ebuild b/app-emulation/libvirt/libvirt-10.5.0-r1.ebuild
index 260b98ee3e168..75e4b00922129 100644
--- a/app-emulation/libvirt/libvirt-10.5.0-r1.ebuild
+++ b/app-emulation/libvirt/libvirt-10.5.0-r1.ebuild
@@ -328,7 +328,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-10.6.0.ebuild b/app-emulation/libvirt/libvirt-10.6.0.ebuild
index 260b98ee3e168..75e4b00922129 100644
--- a/app-emulation/libvirt/libvirt-10.6.0.ebuild
+++ b/app-emulation/libvirt/libvirt-10.6.0.ebuild
@@ -328,7 +328,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-9.8.0-r4.ebuild b/app-emulation/libvirt/libvirt-9.8.0-r4.ebuild
index 1898092ec1c8f..c033816d45a2f 100644
--- a/app-emulation/libvirt/libvirt-9.8.0-r4.ebuild
+++ b/app-emulation/libvirt/libvirt-9.8.0-r4.ebuild
@@ -318,7 +318,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-9.9.0-r4.ebuild b/app-emulation/libvirt/libvirt-9.9.0-r4.ebuild
index e9518a3313a88..6bd3782264631 100644
--- a/app-emulation/libvirt/libvirt-9.9.0-r4.ebuild
+++ b/app-emulation/libvirt/libvirt-9.9.0-r4.ebuild
@@ -319,7 +319,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]
diff --git a/app-emulation/libvirt/libvirt-9999.ebuild b/app-emulation/libvirt/libvirt-9999.ebuild
index 260b98ee3e168..75e4b00922129 100644
--- a/app-emulation/libvirt/libvirt-9999.ebuild
+++ b/app-emulation/libvirt/libvirt-9999.ebuild
@@ -328,7 +328,7 @@ src_configure() {
 	)
 
 	# Workaround for bug #938302
-	if use dtrace && ! has_version "dev-debug/systemtap[dtrace-symlink(-)]" ; then
+	if use dtrace && has_version "dev-debug/systemtap[-dtrace-symlink(+)]" ; then
 		local native_file="${T}"/meson.${CHOST}.ini.local
 		cat >> ${native_file} <<-EOF || die
 		[binaries]