diff --git a/contrib/minizip/zip.c b/contrib/minizip/zip.c
index 1b99580e..147934c7 100644
--- a/contrib/minizip/zip.c
+++ b/contrib/minizip/zip.c
@@ -1115,9 +1115,9 @@ extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename,
     zi->ci.flag = flagBase;
     if ((level==8) || (level==9))
       zi->ci.flag |= 2;
-    if ((level==2))
+    if (level==2)
       zi->ci.flag |= 4;
-    if ((level==1))
+    if (level==1)
       zi->ci.flag |= 6;
     if (password != NULL)
       zi->ci.flag |= 1;