diff --git a/src/meta/processors/indexMan/FTIndexProcessor.cpp b/src/meta/processors/indexMan/FTIndexProcessor.cpp
index 0dec9b8c7..f5b22b2a3 100644
--- a/src/meta/processors/indexMan/FTIndexProcessor.cpp
+++ b/src/meta/processors/indexMan/FTIndexProcessor.cpp
@@ -85,7 +85,8 @@ void CreateFTIndexProcessor::process(const cpp2::CreateFTIndexReq& req) {
     }
 
     // Check fulltext index exist.
-    auto ret = doPrefix(MetaServiceUtils::fulltextIndexPrefix());
+    auto ftPrefix = MetaServiceUtils::fulltextIndexPrefix();
+    auto ret = doPrefix(ftPrefix);
     if (!nebula::ok(ret)) {
         auto retCode = nebula::error(ret);
         LOG(ERROR) << "Fulltext Prefix failed, "
diff --git a/src/meta/processors/partsMan/DropSpaceProcessor.cpp b/src/meta/processors/partsMan/DropSpaceProcessor.cpp
index b5bfb8e3d..5e88f4fba 100644
--- a/src/meta/processors/partsMan/DropSpaceProcessor.cpp
+++ b/src/meta/processors/partsMan/DropSpaceProcessor.cpp
@@ -102,7 +102,8 @@ void DropSpaceProcessor::process(const cpp2::DropSpaceReq& req) {
     deleteKeys.emplace_back(statiskey);
 
     // 6. Delte related fulltext index meta data
-    auto ftRet = doPrefix(MetaServiceUtils::fulltextIndexPrefix());
+    auto ftPrefix = MetaServiceUtils::fulltextIndexPrefix();
+    auto ftRet = doPrefix(ftPrefix);
     if (!nebula::ok(ftRet)) {
         auto retCode = nebula::error(ftRet);
         LOG(ERROR) << "Drop space Failed, space " << spaceName