1 files changed, 1 insertions, 0 deletions
diff --git a/src/os_unix.c b/src/os_unix.c
index 5419a042a..ac5c33e82 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -2145,6 +2145,7 @@ static int unixClose(sqlite3_file *id){
   }
   sqlite3_mutex_leave(pInode->pLockMutex);
   releaseInodeInfo(pFile);
+  assert( pFile->pShm==0 );
   rc = closeUnixFile(id);
   unixLeaveMutex();
   return rc;