diff --git a/doc/classes/SpriteFrames.xml b/doc/classes/SpriteFrames.xml
index 93c4a6e8de83..fd8c15c56037 100644
--- a/doc/classes/SpriteFrames.xml
+++ b/doc/classes/SpriteFrames.xml
@@ -23,7 +23,7 @@
- Adds a frame to the [param anim] animation. If [param at_position] is [code]-1[/code], the frame will be added to the end of the animation.
+ Adds a frame to the [param anim] animation. If [param at_position] is [code]-1[/code], the frame will be added to the end of the animation. [param duration] specifies the relative duration, see [method get_frame_duration] for details.
@@ -139,7 +139,7 @@
- Sets the [param texture] and the [param duration] of the frame [param idx] in the [param anim] animation.
+ Sets the [param texture] and the [param duration] of the frame [param idx] in the [param anim] animation. [param duration] specifies the relative duration, see [method get_frame_duration] for details.