diff --git a/src/widgets/helper/channelview.cpp b/src/widgets/helper/channelview.cpp
index 698769116..d3a7b6005 100644
--- a/src/widgets/helper/channelview.cpp
+++ b/src/widgets/helper/channelview.cpp
@@ -435,7 +435,7 @@ void ChannelView::setChannel(ChannelPtr newChannel)
     // on message replaced
     this->channelConnections_.push_back(
         newChannel->messageReplaced.connect([this](size_t index, MessagePtr replacement) {
-            if (this->messages.getSnapshot().getLength() >= index || index < 0) {
+            if (index >= this->messages.getSnapshot().getLength() || index < 0) {
                 return;
             }