diff --git a/src/gpu/ops/GrOp.cpp b/src/gpu/ops/GrOp.cpp
index a5f6b17..d6420af 100644
--- a/src/gpu/ops/GrOp.cpp
+++ b/src/gpu/ops/GrOp.cpp
@@ -41,7 +41,7 @@
     auto result = this->onCombineIfPossible(that, caps);
     // Merging a chained 'that' would cause problems given the way op lists currently manage chains.
     SkASSERT(!(thatWasChained && result == CombineResult::kMerged));
-    if (fChainHead) {
+    if (fChainHead && result == CombineResult::kMerged) {
         fChainHead->joinBounds(*that);
     }
     return result;