diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 7f9b9dd29b46..84899f7f0880 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -15282,6 +15282,11 @@ with self;
       url = "mirror://cpan/authors/id/X/XA/XAOC/Gtk2-1.24993.tar.gz";
       hash = "sha256-ScRDdDsu7+EadoACck9/akxI78lP8806VZ+357aTyWc=";
     };
+
+    env = lib.optionalAttrs stdenv.cc.isGNU {
+      NIX_CFLAGS_COMPILE = "-std=gnu17";
+    };
+
     patches = [
       # Fix incompatible function pointer conversion (assigning `GdkNativeWindow` to `guint32`).
       ../development/perl-modules/Gtk2-fix-incompatible-pointer-conversion.patch