diff --git a/SConstruct b/SConstruct
index e8817b07..b86ccf6f 100644
--- a/SConstruct
+++ b/SConstruct
@@ -21,6 +21,10 @@ env.PrependENVPath("PATH", os.getenv("PATH"))
 
 # Custom options and profile flags.
 customs = ["custom.py"]
+try:
+    customs += Import("customs")
+except:
+    pass
 profile = ARGUMENTS.get("profile", "")
 if profile:
     if os.path.isfile(profile):