diff --git a/app-text/ghostscript-gpl/ghostscript-gpl-10.04.0.ebuild b/app-text/ghostscript-gpl/ghostscript-gpl-10.04.0.ebuild
index cc4358ac91f32..054a3505cd912 100644
--- a/app-text/ghostscript-gpl/ghostscript-gpl-10.04.0.ebuild
+++ b/app-text/ghostscript-gpl/ghostscript-gpl-10.04.0.ebuild
@@ -126,6 +126,9 @@ src_configure() {
 	# Unsupported upstream, bug #884841
 	filter-lto
 
+	# bug #943857
+	append-cflags -std=gnu17
+
 	# bug #899952
 	append-lfs-flags