diff --git a/Makefile b/Makefile
index 24c9368..b11c417 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 all: reference.py reference.java
 
 reference.py:
-	find . -name "*.py" | grep -v reference.py | xargs cat > reference.py
+	find . -name "*.py" | grep -v reference.py | xargs tail -n +1 > reference.py
 
 reference.java:
-	find . -name "*.java" | grep -v reference.java | xargs cat > reference.java
+	find . -name "*.java" | grep -v reference.java | xargs tail -n +1 > reference.java
 
 clean:
 	rm -rf reference.py reference.java