diff --git a/CHANGELOG b/CHANGELOG
index d23802d550..b35236f890 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,4 @@
+* Add size attribute on image tag
 * Allow to use channel to synchronize Cache
 * Display ids and rule names on access error
 * Move field definition from Model to Field
diff --git a/doc/topics/views/index.rst b/doc/topics/views/index.rst
index 93ed62a93c..0ad74602d8 100644
--- a/doc/topics/views/index.rst
+++ b/doc/topics/views/index.rst
@@ -291,6 +291,8 @@ Display an image.
 
     * ``colspan``: see in common-attributes-colspan_.
 
+    * ``size``: the size of the image in pixels. The default value is 48.
+
     * ``states``: see in common-attributes-states_.
 
     * ``help``: see in common-attributes-help_.
diff --git a/trytond/ir/ui/form.rnc b/trytond/ir/ui/form.rnc
index 6849efcbf1..ca69e714c4 100644
--- a/trytond/ir/ui/form.rnc
+++ b/trytond/ir/ui/form.rnc
@@ -113,6 +113,8 @@ attlist.image &=
 attlist.image &= [ a:defaultValue = "0" ] attribute yfill { "0" | "1" }?
 attlist.image &=
   [ a:defaultValue = "0" ] attribute xexpand { "0" | "1" }?
+attlist.image &=
+  [ a:defaultValue = "48" ] attribute size {text }?
 attlist.image &= [ a:defaultValue = "0" ] attribute xfill { "0" | "1" }?
 attlist.image &= attribute help { text }?
 attlist.image &= attribute states { text }?
diff --git a/trytond/ir/ui/form.rng b/trytond/ir/ui/form.rng
index f8e09056d7..f2f8452b5f 100644
--- a/trytond/ir/ui/form.rng
+++ b/trytond/ir/ui/form.rng
@@ -528,6 +528,14 @@
       </attribute>
     </optional>
   </define>
+  <define name="attlist.image" combine="interleave">
+    <optional>
+      <attribute a:defaultValue="48">
+        <name ns="">size</name>
+        <text/>
+      </attribute>
+    </optional>
+  </define>
   <define name="attlist.image" combine="interleave">
     <optional>
       <attribute a:defaultValue="0">