diff --git a/.github/harness/harness_review.py b/.github/harness/harness_review.py
index 455fb6a3d..2ee174266 100644
--- a/.github/harness/harness_review.py
+++ b/.github/harness/harness_review.py
@@ -189,8 +189,12 @@ def flush_text():
 
 messages = [{"role": "user", "content": [{"text": REVIEW_PROMPT}]}]
 
-event_stream = invoke_harness_streaming(
-    HARNESS_ARN, SESSION_ID, SYSTEM_PROMPT, messages, MODEL_ID, REGION
-)
+try:
+    event_stream = invoke_harness_streaming(
+        HARNESS_ARN, SESSION_ID, SYSTEM_PROMPT, messages, MODEL_ID, REGION
+    )
+except Exception as e:
+    print(f"{RED}ERROR: Failed to invoke harness: {e}{RESET}", file=sys.stderr)
+    sys.exit(1)
 
 print_stream(event_stream)