diff --git a/src/RtspConnection.c b/src/RtspConnection.c
index 67ba446..4f9a134 100644
--- a/src/RtspConnection.c
+++ b/src/RtspConnection.c
@@ -12,7 +12,7 @@ static bool hasSessionId;
 static int rtspClientVersion;
 static char urlAddr[URLSAFESTRING_LEN];
 static bool useEnet;
-static const char* controlStreamId;
+static char* controlStreamId;
 
 static SOCKET sock = INVALID_SOCKET;
 static ENetHost* client;