diff --git a/util/LLgen/src/gencode.c b/util/LLgen/src/gencode.c
index c3c6d36e6..0c24f74f2 100644
--- a/util/LLgen/src/gencode.c
+++ b/util/LLgen/src/gencode.c
@@ -1510,5 +1510,11 @@ STATIC void correct_prefix(void)
 		fprintf(f, "#define LLstartsymb %sstartsymb\n", s);
 #endif
 	}
-	fprintf(f, "#include \"%s\"\n", f_include);
+
+	string leaf = strrchr(f_include, '/');
+	if (leaf)
+		leaf++;
+	else
+		leaf = f_include;
+	fprintf(f, "#include \"%s\"\n", leaf);
 }