diff --git a/.gitignore b/.gitignore
index 24128c8..10d5414 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,6 @@
-ex1
-ex3
-ex4
-ex5
-ex6
-ex7
-ex8
-ex9
-ex10
-ex11
+*
+
+!*.c
+!Makefile
+!README.md
+!*.py
diff --git a/Makefile b/Makefile
index 83959bb..bf1e2c6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 CFLAGS=-Wall -g
 
-EXERCISES = ex1 ex3 ex4 ex5 ex6 ex7 ex8 ex9 ex10 ex11
+EXERCISES = $(patsubst %.c,%,$(shell ls ex*.c))
 
 
 all: $(EXERCISES)