diff --git a/USINGCODEX.md b/USINGCODEX.md
index e3c0e4e..feebdb9 100644
--- a/USINGCODEX.md
+++ b/USINGCODEX.md
@@ -93,15 +93,15 @@ Next you can run:
 ```shell
 curl "http://localhost:8080/api/codex/v1/storage/request/$CID" \
   --header 'Content-Type: application/json' \
-  --data "{
-    \"duration\": \"3600\",
-    \"reward\": \"1\",
-    \"proofProbability\": \"3\",
-    \"expiry\": \"$EXPIRY_TIME\",
-    \"nodes\": 2,
-    \"tolerance\": 1,
-    \"collateral\": \"1\"
-  }"
+  --data '{
+    "duration": "3600",
+    "reward": "1",
+    "proofProbability": "3",
+    "expiry": '"'${EXPIRY_TIME}'"',
+    "nodes": 2,
+    "tolerance": 1,
+    "collateral": "1"
+  }'
 ```
 
 Note that the `\"` pieces are needed for the command to interperate properly.