diff --git a/DMRAccessControl.cpp b/DMRAccessControl.cpp
index 52b48f3..3b88571 100644
--- a/DMRAccessControl.cpp
+++ b/DMRAccessControl.cpp
@@ -47,7 +47,7 @@ CDMRLC* DMRAccessControl::m_lastdmrLC;
 
 std::time_t DMRAccessControl::m_time;
 
-unsigned int DMRAccessControl::m_callHang;
+int DMRAccessControl::m_callHang;
 
 bool DMRAccessControl::m_TGRewriteSlot1;
 bool DMRAccessControl::m_TGRewriteSlot2;
diff --git a/DMRAccessControl.h b/DMRAccessControl.h
index 4e21fe5..9dfc17a 100644
--- a/DMRAccessControl.h
+++ b/DMRAccessControl.h
@@ -43,7 +43,7 @@ private:
 
 	static std::vector<unsigned int> m_prefixes;
 	
-	static unsigned int m_callHang;
+	static int m_callHang;
 
 	static bool m_selfOnly;
 	static unsigned int m_id;