diff --git a/.gitmodules b/.gitmodules
index 89f198ea..6da52c17 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,6 +10,9 @@
 [submodule "third_party/fmt"]
 	path = third_party/fmt
 	url = https://github.com/fmtlib/fmt
+[submodule "third_party/abseil-cpp"]
+	path = third_party/abseil-cpp
+	url = https://github.com/abseil/abseil-cpp.git
 [submodule "third_party/datetime"]
 	path = third_party/datetime
 	url = https://github.com/HowardHinnant/date.git
diff --git a/src/substrait/textplan/parser/SubstraitPlanRelationVisitor.cpp b/src/substrait/textplan/parser/SubstraitPlanRelationVisitor.cpp
index e31c2289..abdb98b2 100644
--- a/src/substrait/textplan/parser/SubstraitPlanRelationVisitor.cpp
+++ b/src/substrait/textplan/parser/SubstraitPlanRelationVisitor.cpp
@@ -790,7 +790,7 @@ std::any SubstraitPlanRelationVisitor::visitExpressionFunctionUse(
   expr.mutable_scalar_function()->set_function_reference(funcReference);
   for (const auto& exp : ctx->expression()) {
     if (endsWith(exp->getText(), "_enum")) {
-      std::string str = absl::StripSuffix(exp->getText(), "_enum");
+      std::string str{absl::StripSuffix(exp->getText(), "_enum")};
       expr.mutable_scalar_function()->add_arguments()->set_enum_(str);
       continue;
     }
diff --git a/third_party/abseil-cpp b/third_party/abseil-cpp
new file mode 160000
index 00000000..c8a2f925
--- /dev/null
+++ b/third_party/abseil-cpp
@@ -0,0 +1 @@
+Subproject commit c8a2f92586fe9b4e1aff049108f5db8064924d8e