diff --git a/test_common/harness/errorHelpers.cpp b/test_common/harness/errorHelpers.cpp
index c2e1e525..53d0716b 100644
--- a/test_common/harness/errorHelpers.cpp
+++ b/test_common/harness/errorHelpers.cpp
@@ -105,6 +105,12 @@ const char *IGetErrorString(int clErrorCode)
         case CL_INVALID_SPEC_ID: return "CL_INVALID_SPEC_ID";
         case CL_MAX_SIZE_RESTRICTION_EXCEEDED:
             return "CL_MAX_SIZE_RESTRICTION_EXCEEDED";
+        case CL_INCOMPATIBLE_COMMAND_QUEUE_KHR:
+            return "CL_INCOMPATIBLE_COMMAND_QUEUE_KHR";
+        case CL_INVALID_SYNC_POINT_WAIT_LIST_KHR:
+            return "CL_INVALID_SYNC_POINT_WAIT_LIST_KHR";
+        case CL_INVALID_COMMAND_BUFFER_KHR:
+            return "CL_INVALID_COMMAND_BUFFER_KHR";
         default: return "(unknown)";
     }
 }