diff --git a/src/main.cpp b/src/main.cpp
index 0101119..f4370cb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -54,7 +54,7 @@ int main()
     {
         const auto line_nc{remove_colors(line)};
         // Don't color +++ and --- lines
-        if (line_nc[2] != '+' && line_nc[2] != '-')
+        if (line.length() >= 2 && (line_nc[2] != '+' && line_nc[2] != '-'))
         {
             if (line_nc[1] == '+')
             {