diff --git a/src/client/common/process/rawProcessApis.ts b/src/client/common/process/rawProcessApis.ts
index 6f3e40d68736..b848618029d0 100644
--- a/src/client/common/process/rawProcessApis.ts
+++ b/src/client/common/process/rawProcessApis.ts
@@ -257,6 +257,10 @@ export function execObservable(
             subscriber.error(ex);
             internalDisposables.forEach((d) => d.dispose());
         });
+        if (options.stdinStr) {
+            proc.stdin?.write(options.stdinStr);
+            proc.stdin?.end();
+        }
     });
 
     return {