diff --git a/README.md b/README.md
index 0c93207d..4335347a 100644
--- a/README.md
+++ b/README.md
@@ -125,7 +125,9 @@ This section is used to specify tasks that will be executed before generating an
                       ```git log -1 --format='%as' -- $KIBOT_PCB_NAME```\
                       Will return the date in YYYY-MM-DD format.\
                       ```date -d @`git log -1 --format='%at' -- $KIBOT_PCB_NAME` +%Y-%m-%d_%H-%M-%S```\
-                      Will return the date in YYYY-MM-DD_HH-MM-SS format.
+                      Will return the date in YYYY-MM-DD_HH-MM-SS format.\
+                      Important: on KiCad 6 the title block data is optional.
+                      This command will work only if you have a date in the PCB/Schematic.
     - `replace_tags`: [dict|list(dict)] Tag or tags to replace.
       * Valid keys:
         - `after`: [string=''] Text to add after the output of `command`.
@@ -147,7 +149,9 @@ This section is used to specify tasks that will be executed before generating an
                       ```git log -1 --format='%as' -- $KIBOT_SCH_NAME```\
                       Will return the date in YYYY-MM-DD format.\
                       ```date -d @`git log -1 --format='%at' -- $KIBOT_SCH_NAME` +%Y-%m-%d_%H-%M-%S```\
-                      Will return the date in YYYY-MM-DD_HH-MM-SS format.
+                      Will return the date in YYYY-MM-DD_HH-MM-SS format.\
+                      Important: on KiCad 6 the title block data is optional.
+                      This command will work only if you have a date in the SCH/Schematic.
     - `replace_tags`: [dict|list(dict)] Tag or tags to replace.
       * Valid keys:
         - `after`: [string=''] Text to add after the output of `command`.
diff --git a/kibot/pre_any_replace.py b/kibot/pre_any_replace.py
index eb61b9d3..dbbfaed2 100644
--- a/kibot/pre_any_replace.py
+++ b/kibot/pre_any_replace.py
@@ -55,7 +55,9 @@ class Base_ReplaceOptions(Optionable):
                 ```git log -1 --format='%as' -- $KIBOT_PCB_NAME```\\
                 Will return the date in YYYY-MM-DD format.\\
                 ```date -d @`git log -1 --format='%at' -- $KIBOT_PCB_NAME` +%Y-%m-%d_%H-%M-%S```\\
-                Will return the date in YYYY-MM-DD_HH-MM-SS format """
+                Will return the date in YYYY-MM-DD_HH-MM-SS format.\\
+                Important: on KiCad 6 the title block data is optional.
+                This command will work only if you have a date in the PCB/Schematic """
             self.replace_tags = TagReplaceBase
             """ [dict|list(dict)] Tag or tags to replace """