diff --git a/doc/classes/Button.xml b/doc/classes/Button.xml
index ef4eba62b29..af42f72c66e 100644
--- a/doc/classes/Button.xml
+++ b/doc/classes/Button.xml
@@ -115,7 +115,7 @@
 		<theme_item name="font_pressed_color" data_type="color" type="Color" default="Color(1, 1, 1, 1)">
 			Text [Color] used when the [Button] is being pressed.
 		</theme_item>
-		<theme_item name="icon_disabled_color" data_type="color" type="Color" default="Color(1, 1, 1, 1)">
+		<theme_item name="icon_disabled_color" data_type="color" type="Color" default="Color(1, 1, 1, 0.4)">
 			Icon modulate [Color] used when the [Button] is disabled.
 		</theme_item>
 		<theme_item name="icon_focus_color" data_type="color" type="Color" default="Color(1, 1, 1, 1)">
diff --git a/scene/resources/default_theme/default_theme.cpp b/scene/resources/default_theme/default_theme.cpp
index 670b141080c..c92a46a98cb 100644
--- a/scene/resources/default_theme/default_theme.cpp
+++ b/scene/resources/default_theme/default_theme.cpp
@@ -175,7 +175,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, Ref<Te
 	theme->set_color("icon_hover_color", "Button", Color(1, 1, 1, 1));
 	theme->set_color("icon_hover_pressed_color", "Button", Color(1, 1, 1, 1));
 	theme->set_color("icon_focus_color", "Button", Color(1, 1, 1, 1));
-	theme->set_color("icon_disabled_color", "Button", Color(1, 1, 1, 1));
+	theme->set_color("icon_disabled_color", "Button", Color(1, 1, 1, 0.4));
 
 	theme->set_constant("hseparation", "Button", 2 * scale);