diff --git a/src/string_util.h b/src/string_util.h
index 731aa2c0..f1e50be4 100644
--- a/src/string_util.h
+++ b/src/string_util.h
@@ -9,7 +9,6 @@
 #include "benchmark/benchmark.h"
 #include "benchmark/export.h"
 #include "check.h"
-#include "internal_macros.h"
 
 namespace benchmark {