diff --git a/src/User.cpp b/src/User.cpp
index 3991b3b0..43f402c8 100644
--- a/src/User.cpp
+++ b/src/User.cpp
@@ -1216,7 +1216,7 @@ bool CUser::AddCTCPReply(const CString& sCTCP, const CString& sReply) {
 }
 
 bool CUser::DelCTCPReply(const CString& sCTCP) {
-	return m_mssCTCPReplies.erase(sCTCP) > 0;
+	return m_mssCTCPReplies.erase(sCTCP.AsUpper()) > 0;
 }
 
 bool CUser::SetStatusPrefix(const CString& s) {