1 files changed, 2 insertions, 2 deletions
diff --git a/src/fkey.c b/src/fkey.c
index 336256e0f..c3cac276a 100644
--- a/src/fkey.c
+++ b/src/fkey.c
@@ -233,8 +233,8 @@ int sqlite3FkLocateIndex(
       if( zKey==0 ){
         /* If zKey is NULL, then this foreign key is implicitly mapped to 
         ** the PRIMARY KEY of table pParent. The PRIMARY KEY index may be 
-        ** identified by the test (Index.autoIndex==2).  */
-        if( pIdx->autoIndex==2 ){
+        ** identified by the test.  */
+        if( IsPrimaryKeyIndex(pIdx) ){
           if( aiCol ){
             int i;
             for(i=0; i<nCol; i++) aiCol[i] = pFKey->aCol[i].iFrom;