diff --git a/src/pc/cliopts.c b/src/pc/cliopts.c
index 162b3e1a7..cd77ef120 100644
--- a/src/pc/cliopts.c
+++ b/src/pc/cliopts.c
@@ -1,4 +1,5 @@
 #include "cliopts.h"
+#include <strings.h>
 
 struct PCCLIOptions gCLIOpts;