diff --git a/media-gfx/mypaint/mypaint-2.0.1-r4.ebuild b/media-gfx/mypaint/mypaint-2.0.1-r4.ebuild
index dcb3e2774f591..7b9680cb330fe 100644
--- a/media-gfx/mypaint/mypaint-2.0.1-r4.ebuild
+++ b/media-gfx/mypaint/mypaint-2.0.1-r4.ebuild
@@ -5,7 +5,7 @@ EAPI=8
 
 PYTHON_COMPAT=( python3_{10..13} )
 
-inherit desktop edo python-single-r1 xdg
+inherit desktop edo python-single-r1 toolchain-funcs xdg
 
 DESCRIPTION="Fast and easy graphics application for digital painters"
 HOMEPAGE="http://mypaint.app/"
@@ -58,6 +58,14 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-2.0.1-python3.11.patch
 )
 
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
 src_compile() {
 	# --disable-openmp can't be passed to setup.py build,
 	# only setup.py build_ext.