diff --git a/mdpre b/mdpre
index 81b42f0..8171e4a 100755
--- a/mdpre
+++ b/mdpre
@@ -33,8 +33,8 @@ from enum import Enum
 import calendar
 
 
-mdpre_level = "0.6.5"
-mdpre_date = "17 February, 2023"
+mdpre_level = "0.6.6"
+mdpre_date = "30 November, 2023"
 banner = "mdpre Markdown Preprocessor v" + mdpre_level + " (" + mdpre_date + ")"
 
 log = partial(print, file=sys.stderr)  # | create log to stderr
@@ -239,6 +239,10 @@ class Output(object):
                 else:
                     formattedDay = day + dayNote
 
+                # Make blank cell appear
+                if formattedDay == "":
+                    formattedDay = " "
+                    
                 # Vertically pad
                 formattedDay = formattedDay + "<br/>" * (cal_cellHeight - cellLines)