diff --git a/.changeset/lazy-kangaroos-think.md b/.changeset/lazy-kangaroos-think.md
new file mode 100644
index 0000000000..6efbe2ad88
--- /dev/null
+++ b/.changeset/lazy-kangaroos-think.md
@@ -0,0 +1,5 @@
+---
+"@urql/exchange-graphcache": patch
+---
+
+Disregard write-only operation when fragment-matching with schema awareness
diff --git a/exchanges/graphcache/src/operations/shared.ts b/exchanges/graphcache/src/operations/shared.ts
index 4dad5e0900..bb1893a3fe 100644
--- a/exchanges/graphcache/src/operations/shared.ts
+++ b/exchanges/graphcache/src/operations/shared.ts
@@ -236,7 +236,10 @@ export function makeSelectionIterator(
                     ctx.store.logger
                   ));
 
-            if (isMatching || currentOperation === 'write') {
+            if (
+              isMatching ||
+              (currentOperation === 'write' && !ctx.store.schema)
+            ) {
               if (process.env.NODE_ENV !== 'production')
                 pushDebugNode(typename, fragment);
               const isFragmentOptional = isOptional(select);