diff --git a/client/src/cmdlfem4x50.h b/client/src/cmdlfem4x50.h
index 01417aa1e..6e1815c87 100644
--- a/client/src/cmdlfem4x50.h
+++ b/client/src/cmdlfem4x50.h
@@ -24,5 +24,6 @@ int CmdEM4x50WritePassword(const char *Cmd);
 int CmdEM4x50Read(const char *Cmd);
 int CmdEM4x50Dump(const char *Cmd);
 int CmdEM4x50Wipe(const char *Cmd);
+int CmdEM4x50BruteForce(const char *Cmd);
 
 #endif