diff --git a/src/mux_h1.c b/src/mux_h1.c
index 7eb18133d..a9363cd44 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -5663,7 +5663,11 @@ static int cfg_parse_h1_headers_case_adjust_file(char **args, int section_type,
 	}
 	free(hdrs_map.name);
 	hdrs_map.name = strdup(args[1]);
-        return 0;
+	if  (!hdrs_map.name) {
+		memprintf(err, "'%s %s' : out of memory", args[0], args[1]);
+		return -1;
+	}
+	return 0;
 }
 
 /* config parser for global "tune.h1.zero-copy-fwd-recv" */