diff --git a/entrypoint.sh b/entrypoint.sh
index a8e3693..670396f 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -28,10 +28,12 @@ cd "${INPUT_PKGDIR:-.}"
 
 # Assume that if .SRCINFO is missing then it is generated elsewhere.
 # AUR checks that .SRCINFO exists so a missing file can't go unnoticed.
-if [ -f .SRCINFO ] && ! sudo -u builder makepkg --printsrcinfo | diff - .SRCINFO; then
+sudo -u builder makepkg --printsrcinfo > .SRCINFO.expected
+if [ -f .SRCINFO ] && ! diff -u --color=always .SRCINFO.expected .SRCINFO; then
 	echo "::error file=$FILE,line=$LINENO::Mismatched .SRCINFO. Update with: makepkg --printsrcinfo > .SRCINFO"
 	exit 1
 fi
+mv .SRCINFO.expected .SRCINFO
 
 # Optionally install dependencies from AUR
 if [ -n "${INPUT_AURDEPS:-}" ]; then