diff --git a/dev-libs/protobuf/protobuf-21.12.ebuild b/dev-libs/protobuf/protobuf-21.12.ebuild
index 3672570cf..899a34cfb 100644
--- a/dev-libs/protobuf/protobuf-21.12.ebuild
+++ b/dev-libs/protobuf/protobuf-21.12.ebuild
@@ -72,9 +72,14 @@ src_compile() {
 multilib_src_install_all() {
 	find "${ED}" -name "*.la" -delete || die
 
-	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}" ]]; then
+	if [[ ${CHOST} == *-darwin* ]]; then
+		local lib_filename="${ED}/usr/$(get_libdir)/libprotobuf.${SLOT#*/}.dylib"
+	else
+		local lib_filename="${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}"
+	fi
+	if [[ ! -f "${lib_filename}" ]]; then
 		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
-			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}"
+			"Expected value: ${lib_filename}"
 		die "Please update SLOT variable"
 	fi