diff --git a/src/debug.c b/src/debug.c
index 146460646..305941586 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -1764,7 +1764,10 @@ int memtest_test_linux_anonymous_maps(void) {
     if (!fd) return 0;
 
     fp = fopen("/proc/self/maps","r");
-    if (!fp) return 0;
+    if (!fp) {
+        closeDirectLogFiledes(fd);
+        return 0;
+    }
     while(fgets(line,sizeof(line),fp) != NULL) {
         char *start, *end, *p = line;