diff --git a/main/m4/APKBUILD b/main/m4/APKBUILD
index b066eeed617..af6db8b8d23 100644
--- a/main/m4/APKBUILD
+++ b/main/m4/APKBUILD
@@ -6,6 +6,7 @@ pkgdesc="GNU macro processor"
 url="https://www.gnu.org/software/m4"
 depends=
 makedepends=texinfo
+checkdepends=diffutils
 arch="all"
 license="GPL-3.0+"
 subpackages="m4-doc"