diff --git a/Makefile b/Makefile
index fdc655d6..935f69c1 100644
--- a/Makefile
+++ b/Makefile
@@ -23,11 +23,11 @@ BASE_FILES = ${SRC_DIR}/core.js\
 	${SRC_DIR}/traversing.js\
 	${SRC_DIR}/manipulation.js\
 	${SRC_DIR}/css.js\
-  ${SRC_DIR}/ajax.js\
-  ${SRC_DIR}/xhr.js\
-  ${SRC_DIR}/transports/jsonp.js\
-  ${SRC_DIR}/transports/script.js\
-  ${SRC_DIR}/transports/xhr.js\
+	${SRC_DIR}/ajax.js\
+	${SRC_DIR}/xhr.js\
+	${SRC_DIR}/transports/jsonp.js\
+	${SRC_DIR}/transports/script.js\
+	${SRC_DIR}/transports/xhr.js\
 	${SRC_DIR}/effects.js\
 	${SRC_DIR}/offset.js\
 	${SRC_DIR}/dimensions.js