diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index e745e87d35b2279314d3de9cb7923c3d2670cf93..05cbc1db64f4617fe8b940969dd8b538f7419118 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -51,8 +51,8 @@ set(MILVUS_VERSION_PATCH "${milvus_VERSION_PATCH}")
 if(MILVUS_VERSION_MAJOR STREQUAL ""
         OR MILVUS_VERSION_MINOR STREQUAL ""
         OR MILVUS_VERSION_PATCH STREQUAL "")
-    message(WARNING "Failed to determine Milvus version from '${MILVUS_VERSION}'")
-    set(MILVUS_VERSION "unknown")
+    message(WARNING "Failed to determine Milvus version from git branch name")
+    set(MILVUS_VERSION "0.3.0")
 endif()
 
 message(STATUS "Build version = ${MILVUS_VERSION}")