diff --git a/mail-filter/couriersrs/couriersrs-0.1.2.ebuild b/mail-filter/couriersrs/couriersrs-0.1.2.ebuild
index 92219e60bf93d..a23e682a6f28b 100644
--- a/mail-filter/couriersrs/couriersrs-0.1.2.ebuild
+++ b/mail-filter/couriersrs/couriersrs-0.1.2.ebuild
@@ -22,6 +22,6 @@ PATCHES=( "${FILESDIR}/${P}-automake-fixes.diff" )
 
 src_prepare() {
 	default
-	rm m4/*.m4
+	rm m4/*.m4 || die "rm failed!"
 	AT_M4DIR="m4" eautoreconf
 }