diff --git a/Makefile b/Makefile
index 61b67de..ef52a78 100644
--- a/Makefile
+++ b/Makefile
@@ -81,6 +81,11 @@ intcmp: build/bin/intcmp
 build/bin/intcmp: src/intcmp.c build
 	$(CC) $(CFLAGS) -o $@ src/intcmp.c
 
+.PHONY: rpn
+rpn: build/bin/rpn
+build/bin/rpn: src/rpn.rs build
+	$(RUSTC) $(RUSTFLAGS) -o $@ src/rpn.rs
+
 .PHONY: scrut
 scrut: build/bin/scrut
 build/bin/scrut: src/scrut.c build