1 files changed, 1 insertions, 1 deletions
diff --git a/src/vdbe.c b/src/vdbe.c
index 91e25bafc..7dcdf4621 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -5467,7 +5467,7 @@ case OP_JournalMode: {    /* out2-prerelease */
   ** in temporary storage or if the VFS does not support shared memory 
   */
   if( eNew==PAGER_JOURNALMODE_WAL
-   && (zFilename[0]==0                         /* Temp file */
+   && (sqlite3Strlen30(zFilename)==0           /* Temp file */
        || !sqlite3PagerWalSupported(pPager))   /* No shared-memory support */
   ){
     eNew = eOld;