diff --git a/testing/downstream_testing/downstream_runner.py b/testing/downstream_testing/downstream_runner.py
index d820aa5ba..7a8e90273 100644
--- a/testing/downstream_testing/downstream_runner.py
+++ b/testing/downstream_testing/downstream_runner.py
@@ -164,7 +164,7 @@ class DownstreamRunner:
                 if filtered_dep and filtered_dep not in found_dep:
                     found_dep.append(filtered_dep)
                     updated_deps.add(
-                        f"!{filtered_dep['gen_exp']} {filtered_dep['src']}"
+                        f"!{filtered_dep['gen_exp']}: {filtered_dep['src']}"
                     )
 
             if not [item for item in updated_deps if pytest_dep in item]: