diff --git a/common/Makedefs b/common/Makedefs
index 5a4560e..73c6bfb 100644
--- a/common/Makedefs
+++ b/common/Makedefs
@@ -9,7 +9,7 @@
 
 XOS_DIR              ?= $(HOME_DIR)/xos
 SERVICE_DIR          ?= $(HOME_DIR)/xos_services
-LIBRARY_DIR	     ?= $(HOME_DIR)/xos_libraries
+LIBRARY_DIR          ?= $(HOME_DIR)/xos_libraries
 
 XOS_BOOTSTRAP_PORT   ?= 81
 XOS_UI_PORT          ?= 80