diff --git a/CMakeLists.txt b/CMakeLists.txt
index 916041e7..f12fecee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ set(CMAKE_SKIP_RPATH TRUE)
 
 project(
 	workflow
-	VERSION 0.9.3
+	VERSION 0.9.4
 	LANGUAGES C CXX
 )
 
diff --git a/src/manager/WFGlobal.cc b/src/manager/WFGlobal.cc
index a4901437..676bfb94 100644
--- a/src/manager/WFGlobal.cc
+++ b/src/manager/WFGlobal.cc
@@ -686,6 +686,9 @@ static inline const char *__get_task_error_string(int error)
 	case WFT_ERR_MYSQL_COMMAND_DISALLOWED:
 		return "MySQL Command Disallowed";
 
+	case WFT_ERR_MYSQL_QUERY_NOT_SET:
+		return "MySQL Query Not Set";
+
 	case WFT_ERR_KAFKA_PARSE_RESPONSE_FAILED:
 		return "Kafka parse response failed";