diff --git a/gnu/libexec/uucp/common_sources/uudefs.h b/gnu/libexec/uucp/common_sources/uudefs.h
index 2b45502b626..bf3d9f404ac 100644
--- a/gnu/libexec/uucp/common_sources/uudefs.h
+++ b/gnu/libexec/uucp/common_sources/uudefs.h
@@ -287,7 +287,11 @@ extern boolean fparse_cmd P((char *zcmd, struct scmd *qcmd));
 #if ANSI_C && HAVE_VFPRINTF
 extern void ulog P((enum tlog ttype, const char *zfmt, ...))
 #if GNUC_VERSION > 1
+#ifdef __printf0like
+     __printf0like (2, 3)
+#else
      __attribute__ ((format (printf, 2, 3)))
+#endif
 #endif
      ;
 #else