diff --git a/python/run-tests.py b/python/run-tests.py
index 83b7d86c11da..5de4b6fb00d3 100755
--- a/python/run-tests.py
+++ b/python/run-tests.py
@@ -237,11 +237,8 @@ def module_exists(module):
     for testname in testnames.split(','):
         if " " in testname:
             # "{module} {class.testcase_name}"
-            module, testcase = testname.split(" ")
-            if not module_exists(module):
-                print(f"Error: Can't find module '{module}'.")
-                sys.exit(-1)
-            testnames_to_test.append(f"{module} {testcase}")
+            # Just add the testname as is
+            testnames_to_test.append(testname)
         else:
             if module_exists(testname):
                 # "{module}"
@@ -255,8 +252,8 @@ def module_exists(module):
                         testnames_to_test.append(f"{module} {testcase}")
                         break
                 else:
-                    print(f"Error: Invalid testname '{testname}'.")
-                    sys.exit(-1)
+                    # "Can't find the module, the users must know what they are doing"
+                    testnames_to_test.append(testname)
 
     return testnames_to_test