diff --git a/Makefile b/Makefile
index 4b40e34..0993e50 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
-all: main.c
-	gcc main.c json.c curl.c -lcurl -lcjson -o isbn -Wall
+all: src/*.c
+	gcc src/main.c src/json.c src/curl.c -lcurl -lcjson -o isbn -Wall
+	mv isbn build
 clean:
 	rm isbn
diff --git a/curl.c b/src/curl.c
similarity index 100%
rename from curl.c
rename to src/curl.c
diff --git a/curl.h b/src/curl.h
similarity index 100%
rename from curl.h
rename to src/curl.h
diff --git a/json.c b/src/json.c
similarity index 100%
rename from json.c
rename to src/json.c
diff --git a/json.h b/src/json.h
similarity index 100%
rename from json.h
rename to src/json.h
diff --git a/main.c b/src/main.c
similarity index 100%
rename from main.c
rename to src/main.c