diff --git a/src/backend/storage/freespace/freespace.c b/src/backend/storage/freespace/freespace.c
index fddb47c..c948cb6 100644
--- a/src/backend/storage/freespace/freespace.c
+++ b/src/backend/storage/freespace/freespace.c
@@ -308,8 +308,7 @@ FreeSpaceMapTruncateRel(Relation rel, BlockNumber nblocks)
 	 * at the next command boundary.  But this ensures it isn't outright wrong
 	 * until then.
 	 */
-	if (rel->rd_smgr)
-		rel->rd_smgr->smgr_fsm_nblocks = new_nfsmblocks;
+	rel->rd_smgr->smgr_fsm_nblocks = new_nfsmblocks;
 }
 
 /*