diff --git a/src/namspace.c b/src/namspace.c
index 8aeb28d..b2c24e0 100644
--- a/src/namspace.c
+++ b/src/namspace.c
@@ -935,12 +935,12 @@ static int build_dos_name(DIR_BASE_ENTRY *e, uint8 *fname, int size_fname)
     return 0;
 
   strncpy(dir_unix, (char *)unixname, sizeof(dir_unix) - 1);
-  dir_unix[sizeof(dir_unix) - 1] = '';
+  dir_unix[sizeof(dir_unix) - 1] = '\0';
   xfree(unixname);
 
   slash = strrchr(dir_unix, '/');
   if (slash)
-    *slash = '';
+    *slash = '\0';
   else
     strcpy(dir_unix, ".");