diff --git a/velox/exec/tests/TableWriteTest.cpp b/velox/exec/tests/TableWriteTest.cpp
index 9256e40716ef..e568fd82f40e 100644
--- a/velox/exec/tests/TableWriteTest.cpp
+++ b/velox/exec/tests/TableWriteTest.cpp
@@ -562,7 +562,7 @@ class TableWriteTest : public HiveConnectorTestBase {
     std::vector<std::string> conjuncts;
 
     std::vector<std::string> partitionKeyValues;
-    folly::split("/", partitionName, partitionKeyValues);
+    folly::split('/', partitionName, partitionKeyValues);
     VELOX_CHECK_EQ(partitionKeyValues.size(), partitionTypes.size());
 
     for (auto i = 0; i < partitionKeyValues.size(); ++i) {
diff --git a/velox/functions/lib/aggregates/tests/AggregationTestBase.cpp b/velox/functions/lib/aggregates/tests/AggregationTestBase.cpp
index 3ffea953b7ca..80c5f389552c 100644
--- a/velox/functions/lib/aggregates/tests/AggregationTestBase.cpp
+++ b/velox/functions/lib/aggregates/tests/AggregationTestBase.cpp
@@ -223,7 +223,7 @@ getFunctionNamesAndArgs(const std::vector<std::string>& aggregates) {
   std::vector<std::string> aggregateArgs;
   for (const auto& aggregate : aggregates) {
     std::vector<std::string> tokens;
-    folly::split("(", aggregate, tokens);
+    folly::split('(', aggregate, tokens);
     VELOX_CHECK_EQ(tokens.size(), 2);
     functionNames.push_back(tokens[0]);
     aggregateArgs.push_back(tokens[1].substr(0, tokens[1].find(')')));