diff --git a/gcc/testsuite/g++.old-deja/g++.other/inline8.C b/gcc/testsuite/g++.old-deja/g++.other/inline8.C
index b919ab5df3f..a46dc382a7d 100644
--- a/gcc/testsuite/g++.old-deja/g++.other/inline8.C
+++ b/gcc/testsuite/g++.old-deja/g++.other/inline8.C
@@ -4,6 +4,7 @@
 
 #include <map>
 #include <cstdlib>
+#include <cstring>
 
 using namespace std;