1 files changed, 1 insertions, 1 deletions
diff --git a/src/pager.c b/src/pager.c
index 9ab6262ef..9686eb904 100644
--- a/src/pager.c
+++ b/src/pager.c
@@ -5054,7 +5054,7 @@ static void sqlite3PagerSetCodec(
   void *pCodec
 ){
   if( pPager->xCodecFree ) pPager->xCodecFree(pPager->pCodec);
-  pPager->xCodec = xCodec;
+  pPager->xCodec = pPager->memDb ? 0 : xCodec;
   pPager->xCodecSizeChng = xCodecSizeChng;
   pPager->xCodecFree = xCodecFree;
   pPager->pCodec = pCodec;