diff --git a/sci-chemistry/openbabel-perl/openbabel-perl-2.3.2.ebuild b/sci-chemistry/openbabel-perl/openbabel-perl-2.3.2.ebuild
index 1f6b5d8005a2c..25a87bc1b7ef8 100644
--- a/sci-chemistry/openbabel-perl/openbabel-perl-2.3.2.ebuild
+++ b/sci-chemistry/openbabel-perl/openbabel-perl-2.3.2.ebuild
@@ -33,7 +33,7 @@ src_prepare() {
 	sed \
 		-e '/__GNUC__/s:== 4:>= 4:g' \
 		-i include/openbabel/shared_ptr.h || die
-	epatch "${PATCHES[@]}"
+	cmake-utils_src_prepare
 	perl_set_version
 }
 
diff --git a/sci-chemistry/openbabel-perl/openbabel-perl-2.4.1.ebuild b/sci-chemistry/openbabel-perl/openbabel-perl-2.4.1.ebuild
index 1e01e9007b7b2..6a3ef89b0e13a 100644
--- a/sci-chemistry/openbabel-perl/openbabel-perl-2.4.1.ebuild
+++ b/sci-chemistry/openbabel-perl/openbabel-perl-2.4.1.ebuild
@@ -31,7 +31,7 @@ src_prepare() {
 	sed \
 		-e '/__GNUC__/s:== 4:>= 4:g' \
 		-i include/openbabel/shared_ptr.h || die
-	default
+	cmake-utils_src_prepare
 	perl_set_version
 }