diff --git a/makefile b/makefile
index 613c02b..8825b5d 100644
--- a/makefile
+++ b/makefile
@@ -102,11 +102,11 @@ clean:
 build:
 	mkdir build
 
-config.h:
-	python tools/config.py
+config.h: config
 
 config:
 	python tools/config.py
+	git update-index --assume-unchanged config.h 2> /dev/null || true
 
 help:
 	@echo "Valid targets are"
diff --git a/tools/config.py b/tools/config.py
index 1e153b7..81c5a3c 100755
--- a/tools/config.py
+++ b/tools/config.py
@@ -321,13 +321,10 @@ class OpenChronosApp(object):
 
 
     def save_config(self):
-        print "save"
         for key,field in self.fields.iteritems():
-            print key, field
             if isinstance(field, (tuple, list)):
                 for item in field:
                     if hasattr(item, "get_state"):
-                        print item.get_state()
                         if item.get_state():
                             # found the set radio button
                             DATA[key]["value"] = item.value
@@ -348,7 +345,9 @@ class OpenChronosApp(object):
         fp.write(HEADER)
         for key,dat in DATA.iteritems():
             if not "value" in dat:
-               continue
+                continue
+            if "type" in dat and dat["type"] == "info":
+                continue
             if DATA[key].get("ifndef", False):
                 fp.write("#ifndef %s\n" %key)
             if isinstance(dat["value"], bool):