diff --git a/tests/string_test.cpp b/tests/string_test.cpp
index 1d63c76..cf90045 100644
--- a/tests/string_test.cpp
+++ b/tests/string_test.cpp
@@ -22,6 +22,7 @@
 #include <gtest/gtest.h>
 #include <malloc.h>
 #include <math.h>
+#include <stdint.h>
 
 #include "buffer_tests.h"
 
@@ -1396,6 +1397,10 @@
   delete[] heap_src;
 }
 
+TEST(string, strnlen_74741) {
+  ASSERT_EQ(4U, strnlen("test", SIZE_MAX));
+}
+
 TEST(string, mempcpy) {
   char dst[6];
   ASSERT_EQ(&dst[4], reinterpret_cast<char*>(mempcpy(dst, "hello", 4)));