diff --git a/profiles/arch/arm/use.mask b/profiles/arch/arm/use.mask
index adc3b1cde78cf..53b35994e0a54 100644
--- a/profiles/arch/arm/use.mask
+++ b/profiles/arch/arm/use.mask
@@ -4,6 +4,10 @@
 # Unmask the flag which corresponds to ARCH.
 -arm
 
+# Sam James <sam@gentoo.org> (2024-06-13)
+# Needs as-yet-unkeyworded KF6 (bug #934215)
+kf6compat
+
 # Andreas Sturmlechner <asturm@gentoo.org> (2023-02-06)
 # Successful build of dev-qt/qtwebengine depends on 64-bit host
 # Bug #893234
diff --git a/profiles/arch/arm64/use.mask b/profiles/arch/arm64/use.mask
index 2b5aca1f59d3c..7a6b867544da4 100644
--- a/profiles/arch/arm64/use.mask
+++ b/profiles/arch/arm64/use.mask
@@ -1,9 +1,13 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # Unmask the flag which corresponds to ARCH.
 -arm64
 
+# Sam James <sam@gentoo.org> (2024-06-13)
+# Needs as-yet-unkeyworded KF6 (bug #934215)
+kf6compat
+
 # Paul Zander <negril.nx+gentoo@gmail.com> (2024-03-28)
 # dev-libs/optix works on arm64
 -optix
diff --git a/profiles/arch/loong/use.mask b/profiles/arch/loong/use.mask
index 833644072e72b..697686ae9aedc 100644
--- a/profiles/arch/loong/use.mask
+++ b/profiles/arch/loong/use.mask
@@ -1,6 +1,10 @@
 # Copyright 2022-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
+# Sam James <sam@gentoo.org> (2024-06-13)
+# Needs as-yet-unkeyworded KF6 (bug #934215)
+kf6compat
+
 # Michał Górny <mgorny@gentoo.org> (2024-02-05)
 # LLVM slots without keywords.
 llvm_slot_15
diff --git a/profiles/arch/powerpc/ppc64/use.mask b/profiles/arch/powerpc/ppc64/use.mask
index 34a2f70e2b103..460ba125e9a44 100644
--- a/profiles/arch/powerpc/ppc64/use.mask
+++ b/profiles/arch/powerpc/ppc64/use.mask
@@ -1,8 +1,12 @@
-# Copyright 2008-2023 Gentoo Authors
+# Copyright 2008-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 ### THIS FILE IS ONLY FOR PACKAGES MASKED ON BOTH 64-BIT AND 32-BIT USERLAND!!!
 
+# Sam James <sam@gentoo.org> (2024-06-13)
+# Needs as-yet-unkeyworded KF6 (bug #934215)
+kf6compat
+
 # Paul Zander <negril.nx+gentoo@gmail.com> (2024-03-29)
 # not available here (see openexr, opencolorio, opencv)
 openvdb
diff --git a/profiles/arch/riscv/use.mask b/profiles/arch/riscv/use.mask
index 00ac5effb49e5..87b8093152c6b 100644
--- a/profiles/arch/riscv/use.mask
+++ b/profiles/arch/riscv/use.mask
@@ -4,6 +4,10 @@
 # Unmask the flag which corresponds to ARCH.
 -riscv
 
+# Sam James <sam@gentoo.org> (2024-06-13)
+# Needs as-yet-unkeyworded KF6 (bug #934215)
+kf6compat
+
 # Andrew Ammerlaan <andrewammerlaan@gentoo.org> (2023-07-11)
 # Unmask secureboot flag on arches where sbsigntools is keyworded
 -secureboot
diff --git a/profiles/arch/x86/use.mask b/profiles/arch/x86/use.mask
index 2157622d2e3cb..2ef0d8e9161c8 100644
--- a/profiles/arch/x86/use.mask
+++ b/profiles/arch/x86/use.mask
@@ -4,6 +4,10 @@
 # Unmask the flag which corresponds to ARCH.
 -x86
 
+# Sam James <sam@gentoo.org> (2024-06-13)
+# Needs as-yet-unkeyworded KF6 (bug #934215)
+kf6compat
+
 # Paul Zander <negril.nx+gentoo@gmail.com> (2024-04-14)
 # media-libs/quirc is keyworded on amd64
 -quirc