diff --git a/.local/bin/compiler b/.local/bin/compiler
index 3c2d204..0d0ce87 100755
--- a/.local/bin/compiler
+++ b/.local/bin/compiler
@@ -31,6 +31,7 @@ case "$ext" in
 	[0-9]) preconv "$file" | refer -PS -e | groff -mandoc -T pdf > "$base".pdf ;;
 	c) cc "$file" -o "$base" && "$base" ;;
 	cpp) g++ "$file" -o "$base" && "$base" ;;
+	cs) mcs "$file" && mono "$base".exe ;;
 	go) go run "$file" ;;
 	h) sudo make install ;;
 	m) octave "$file" ;;