diff --git a/admin/scons/Buildhelper.py b/admin/scons/Buildhelper.py
index 69fb3849d..e5d111885 100644
--- a/admin/scons/Buildhelper.py
+++ b/admin/scons/Buildhelper.py
@@ -207,7 +207,7 @@ def checkCommandOption(env, optID, val=None, cmdName=None):
 
 
 class Record(dict):
-    """ a set of properties with map style access.
+    """ a set of properties with record style access.
         Record is a dictionary, but the elements can be accessed
         conveniently as if they where object fields
     """
diff --git a/tests/library/test-time.c b/tests/library/test-time.c
index 5143ad994..13137991b 100644
--- a/tests/library/test-time.c
+++ b/tests/library/test-time.c
@@ -132,7 +132,9 @@ TEST (ntsc_drop_frame)
   CHECK (lumiera_time_ntsc_drop_frames (t)                 == 15);
   CHECK (lumiera_time_frame_count (t, NTSC_DROP_FRAME_FPS) == 423191);  
 
-  // Make sure we get back the same times.  These tests are perhaps overly exhaustive.
+  // Cover the whole value range;
+  // Manually construct a drop-frame timecode
+  // Make sure our library function returns the same times.
   int min;
   int sec;
   int frame;