diff --git a/src/SSLCipherInfo.h b/src/SSLCipherInfo.h
index 508db61..2889b82 100644
--- a/src/SSLCipherInfo.h
+++ b/src/SSLCipherInfo.h
@@ -30,6 +30,7 @@
 
 #ifndef MUMBLE_SSLCIPHERINFO_H_
 #define MUMBLE_SSLCIPHERINFO_H_
+#include <string.h>
 
 struct SSLCipherInfo {
 	const char *openssl_name;