diff --git a/.gitignore b/.gitignore
index c2bf155..b4981f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 build
+obj
 **/*.out
 **/*.o
+probotic
diff --git a/Makefile b/Makefile
index 608da0b..0b67f58 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ SRC.DIR := src
 OBJ.DIR := $(PREFIX)/obj
 # INC.DIR := include
 
-OBJ := $(addprefix $(OBJ.DIR)/, fetch.c main.c)
+OBJ := $(addprefix $(OBJ.DIR)/,fetch.o main.o)
 # HDR :=
 
 VPATH := $(INC.DIR) $(SRC.DIR) $(OBJ.DIR)