diff --git a/source/arm9/ui.c b/source/arm9/ui.c
index 984b8be..8b8a65e 100644
--- a/source/arm9/ui.c
+++ b/source/arm9/ui.c
@@ -215,8 +215,11 @@
 		ptr++;
 	}
 	
-	unsigned int lastLineLen = strlen(lastLine) + 2;
-	if(lastLineLen > longestLine) longestLine = lastLineLen;
+	if(lastLine)
+	{
+		unsigned int lastLineLen = strlen(lastLine) + 2;
+		if(lastLineLen > longestLine) longestLine = lastLineLen;
+	}
 
 	PrintConsole *prevCon = consoleGet();
 	PrintConsole windowCon;