diff --git a/MC/doc/WorkflowRunner.md b/MC/doc/WorkflowRunner.md
index 43da3c5b1..7982e9bbc 100644
--- a/MC/doc/WorkflowRunner.md
+++ b/MC/doc/WorkflowRunner.md
@@ -58,7 +58,7 @@ still in development. Currently, it follows the following scheme:
     },
     {
       "name": "task2",
-      "env": { "MY_ENV":1 }
+      "env": { "MY_ENV": "1" }
       "cmd": "o2-sim-digitizer-workflow"
       "needs": [ "task1" ],
       "resources": {