diff --git a/src/fuse_create.cpp b/src/fuse_create.cpp
index 097003f2..50358415 100644
--- a/src/fuse_create.cpp
+++ b/src/fuse_create.cpp
@@ -295,7 +295,7 @@ namespace FUSE
     if(rv != 0)
       return rv;
 
-    uint64_t x = ((((uint64_t)+cfg->passthrough) << 32) | (ffi_->flags & O_ACCMODE));
+    uint64_t x = combine(cfg->passthrough,ffi_->flags);
     switch(x)
       {
       default: