diff --git a/doc/manual.html b/doc/manual.html
index 2e7eeff..ff2ef27 100644
--- a/doc/manual.html
+++ b/doc/manual.html
@@ -663,6 +663,7 @@ execp_interval = 1
 <li><p><code>button_background_id = integer</code> : Which background to use. <em>(since 0.14)</em></p></li>
 <li><p><code>button_centered = boolean (0 or 1)</code> : Whether to center the text. <em>(since 0.14)</em></p></li>
 <li><p><code>button_padding = horizontal_padding vertical_padding spacing_between_icon_and_text</code> <em>(since 0.14)</em></p></li>
+<li><p><code>button_max_icon_size = integer</code> : Sets a limit to the icon size. Otherwise, the icon will expand to the edges. <em>(since 0.14)</em></p></li>
 <li><p><code>button_lclick_command = text</code> : Command to execute on left click. If not defined, <code>execp_command</code> is  executed immediately, unless it is currently running. <em>(since 0.14)</em></p></li>
 <li><p><code>button_mclick_command = text</code> : Command to execute on right click. If not defined, <code>execp_command</code> is  executed immediately, unless it is currently running. <em>(since 0.14)</em></p></li>
 <li><p><code>button_rclick_command = text</code> : Command to execute on middle click. If not defined, <code>execp_command</code> is  executed immediately, unless it is currently running. <em>(since 0.14)</em></p></li>
diff --git a/doc/tint2.1 b/doc/tint2.1
index 10a6cdf..e8be17e 100644
--- a/doc/tint2.1
+++ b/doc/tint2.1
@@ -825,6 +825,8 @@ execp_interval = 1
 .IP \(bu 2
 \fB\fCbutton_padding = horizontal_padding vertical_padding spacing_between_icon_and_text\fR \fI(since 0.14)\fP
 .IP \(bu 2
+\fB\fCbutton_max_icon_size = integer\fR : Sets a limit to the icon size. Otherwise, the icon will expand to the edges. \fI(since 0.14)\fP
+.IP \(bu 2
 \fB\fCbutton_lclick_command = text\fR : Command to execute on left click. If not defined, \fB\fCexecp_command\fR is  executed immediately, unless it is currently running. \fI(since 0.14)\fP
 .IP \(bu 2
 \fB\fCbutton_mclick_command = text\fR : Command to execute on right click. If not defined, \fB\fCexecp_command\fR is  executed immediately, unless it is currently running. \fI(since 0.14)\fP
diff --git a/doc/tint2.md b/doc/tint2.md
index 10b061b..f1dddba 100644
--- a/doc/tint2.md
+++ b/doc/tint2.md
@@ -693,6 +693,7 @@ execp_interval = 1
   * `button_centered = boolean (0 or 1)` : Whether to center the text. *(since 0.14)*
 
   * `button_padding = horizontal_padding vertical_padding spacing_between_icon_and_text` *(since 0.14)*
+  * `button_max_icon_size = integer` : Sets a limit to the icon size. Otherwise, the icon will expand to the edges. *(since 0.14)*
 
   * `button_lclick_command = text` : Command to execute on left click. If not defined, `execp_command` is  executed immediately, unless it is currently running. *(since 0.14)*
   * `button_mclick_command = text` : Command to execute on right click. If not defined, `execp_command` is  executed immediately, unless it is currently running. *(since 0.14)*