diff --git a/packages/openapi-to-graphql/src/resolver_builder.ts b/packages/openapi-to-graphql/src/resolver_builder.ts
index 49a18f9d..05685057 100644
--- a/packages/openapi-to-graphql/src/resolver_builder.ts
+++ b/packages/openapi-to-graphql/src/resolver_builder.ts
@@ -446,10 +446,18 @@ export function getResolver({
      *
      * NOTE: This may cause the user to encounter unexpected changes
      */
-    headers['content-type'] =
-      typeof operation.payloadContentType !== 'undefined'
-        ? operation.payloadContentType
-        : 'application/json'
+    if (operation.method !== 'get')
+    {
+       /**
+        * the check is done on the 'get' operation to determine if there is a payload because
+        * operation.payloadRequired is not always correctly initialized (at least during the unit test)
+        */
+      headers['content-type'] =
+        typeof operation.payloadContentType !== 'undefined'
+          ? operation.payloadContentType
+          : 'application/json'
+    }
+
     headers['accept'] =
       typeof operation.responseContentType !== 'undefined'
         ? operation.responseContentType