diff --git a/docs/manual.pmd b/docs/manual.pmd
index 2317f78f..509b97db 100644
--- a/docs/manual.pmd
+++ b/docs/manual.pmd
@@ -3582,12 +3582,13 @@ usually consists of address data in a data structure. The format of the primary
 message required by Zint is given in the following table:
 
 Characters   Meaning
-----------   ---------------------------------------------------------------
-1 - 9        Postcode data which can consist of up to 9 digits (for mode 2)
-             or up to 6 alphanumeric characters (for mode 3). Remaining
-             unused characters can be filled with the SPACE character
-             (ASCII 32) or omitted (if omitted adjust the following
-             character positions).
+----------   -----------------------------------------------------------------
+1 - 9        Postcode data which can consist of up to 9 digits (for mode 2) or
+             up to 6 alphanumeric characters (for mode 3). Remaining unused
+             characters for mode 3 can be filled with the SPACE character
+             (ASCII 32) or omitted.
+             (adjust the following character positions according to postcode
+             length)
 10 - 12      Three-digit country code according to ISO 3166-1.
 13 - 15      Three-digit service code. This depends on your parcel courier.
 
diff --git a/docs/manual.txt b/docs/manual.txt
index a5fd2de8..b7d831d0 100644
--- a/docs/manual.txt
+++ b/docs/manual.txt
@@ -3496,12 +3496,13 @@ usually consists of address data in a data structure. The format of the primary
 message required by Zint is given in the following table:
 
   Characters   Meaning
-  ------------ ----------------------------------------------------------------
-  1 - 9        Postcode data which can consist of up to 9 digits (for mode 2)
-               or up to 6 alphanumeric characters (for mode 3). Remaining
-               unused characters can be filled with the SPACE character
-               (ASCII 32) or omitted (if omitted adjust the following
-               character positions).
+  ------------ -------------------------------------------------------------------
+  1 - 9        Postcode data which can consist of up to 9 digits (for mode 2) or
+               up to 6 alphanumeric characters (for mode 3). Remaining unused
+               characters for mode 3 can be filled with the SPACE character
+               (ASCII 32) or omitted.
+               (adjust the following character positions according to postcode
+               length)
   10 - 12      Three-digit country code according to ISO 3166-1.
   13 - 15      Three-digit service code. This depends on your parcel courier.
 
diff --git a/frontend_qt/grpMaxicode.ui b/frontend_qt/grpMaxicode.ui
index ee0ae980..a7c955f0 100644
--- a/frontend_qt/grpMaxicode.ui
+++ b/frontend_qt/grpMaxicode.ui
@@ -103,8 +103,8 @@ Mode 6 sets the scanner (Reader Initialisation/Programming)</string>
         <property name="toolTip">
          <string>Postcode of up to 9 digits for Mode 2 or
 6 alphanumerics for Mode 3 (will truncate)
-Postcodes less than maximum length will
-be padded with spaces
+Mode 3 postcodes less than maximum
+length will be padded with spaces
 (ignored if disabled)</string>
         </property>
         <property name="text">
@@ -126,8 +126,8 @@ be padded with spaces
         <property name="toolTip">
          <string>Postcode of up to 9 digits for Mode 2 or
 6 alphanumerics for Mode 3 (will truncate)
-Postcodes less than maximum length will
-be padded with spaces
+Mode 3 postcodes less than maximum
+length will be padded with spaces
 (ignored if disabled)</string>
         </property>
         <property name="sizePolicy">