1 files changed, 1 insertions, 0 deletions
diff --git a/src/main.c b/src/main.c
index 690b73c2e..ea64d8be9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2977,6 +2977,7 @@ int sqlite3_test_control(int op, ...){
 ** returns a NULL pointer.
 */
 const char *sqlite3_uri_parameter(const char *zFilename, const char *zParam){
+  if( zFilename==0 ) return 0;
   zFilename += sqlite3Strlen30(zFilename) + 1;
   while( zFilename[0] ){
     int x = strcmp(zFilename, zParam);