1 files changed, 1 insertions, 1 deletions
diff --git a/tksao/frame/fitsmask.h b/tksao/frame/fitsmask.h
index 596f1bb..d4b51dd 100644
--- a/tksao/frame/fitsmask.h
+++ b/tksao/frame/fitsmask.h
@@ -12,7 +12,7 @@ class Context;
 
 class FitsMask {
  public:
-  enum MaskType {ZERO, NONZERO, RANGE};
+  enum MaskType {ZERO, NONZERO, NaN, NONNaN, RANGE};
 
  private:
   Context* context_;