diff --git a/src/chat.cpp b/src/chat.cpp
index b78b90145..1fb872b85 100644
--- a/src/chat.cpp
+++ b/src/chat.cpp
@@ -774,5 +774,5 @@ void ChatBackend::scrollPageDown()
 
 void ChatBackend::scrollPageUp()
 {
-	m_console_buffer.scroll(-m_console_buffer.getRows());
+	m_console_buffer.scroll(-(s32)m_console_buffer.getRows());
 }