diff --git a/src/Makefile b/src/Makefile
index 3c31373..9a88b4b 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,14 +1,14 @@
 LDFLAGS="-L/usr/local/opt/flex/lib"
 
 a_pow_b: ram
-	./ram < a_pow_b.1
+	./ram < a_pow_b.asm
 	echo "### machine.py ###"
 	cat machine.py
 	echo "### execution ###"
 	python machine.py
 
 test: ram
-	./ram < test.1
+	./ram < test.asm
 	echo "### machine.py ###"
 	cat machine.py
 	echo "### execution ###"
diff --git a/src/a_pow_b.1 b/src/a_pow_b.asm
similarity index 100%
rename from src/a_pow_b.1
rename to src/a_pow_b.asm
diff --git a/src/bubble_sort.asm b/src/bubble_sort.asm
new file mode 100644
index 0000000..e69de29
diff --git a/src/test.1 b/src/test.asm
similarity index 100%
rename from src/test.1
rename to src/test.asm