diff --git a/src/transform/thread_storage_sync.cc b/src/transform/thread_storage_sync.cc
index 1fd0f10a7..2e5e01702 100644
--- a/src/transform/thread_storage_sync.cc
+++ b/src/transform/thread_storage_sync.cc
@@ -1417,8 +1417,8 @@ struct TileLangThreadSyncPlanner : public ConstrVisitor {
 
     // If this is a read into a double buffer that was previously
     // swapped out, then it doesn't conflict.
-    if (prev.double_buffer_write && curr.type == kRead && !loop_carry) {
-      return false;
+    if (curr.type == kWrite && prev.type == kRead && loop_carry) {
+      return true;
     }
 
     // If nothing else allows sharing the same buffer, then they are