diff --git a/clang/test/Analysis/llvm-conventions.cpp b/clang/test/Analysis/llvm-conventions.cpp
index a0431fb3ea40..49bdc6380bc8 100644
--- a/clang/test/Analysis/llvm-conventions.cpp
+++ b/clang/test/Analysis/llvm-conventions.cpp
@@ -7,7 +7,6 @@
 // Forward declarations for StringRef tests.
 //===----------------------------------------------------------------------===//
 
-using size_t = unsigned long;
 using size_type = size_t;
 
 namespace std {