diff --git a/doc/classes/ReflectionProbe.xml b/doc/classes/ReflectionProbe.xml
index 1d32a8b509a..db01faced82 100644
--- a/doc/classes/ReflectionProbe.xml
+++ b/doc/classes/ReflectionProbe.xml
@@ -28,8 +28,8 @@
 		<member name="enable_shadows" type="bool" setter="set_enable_shadows" getter="are_shadows_enabled" default="false">
 			If [code]true[/code], computes shadows in the reflection probe. This makes the reflection probe slower to render; you may want to disable this if using the [constant UPDATE_ALWAYS] [member update_mode].
 		</member>
-		<member name="extents" type="Vector3" setter="set_extents" getter="get_extents" default="Vector3(1, 1, 1)">
-			The size of the reflection probe. The larger the extents the more space covered by the probe which will lower the perceived resolution. It is best to keep the extents only as large as you need them.
+		<member name="extents" type="Vector3" setter="set_extents" getter="get_extents" default="Vector3(10, 10, 10)">
+			The size of the reflection probe. The larger the extents, the more space covered by the probe, which will lower the perceived resolution. It is best to keep the extents only as large as you need them.
 		</member>
 		<member name="intensity" type="float" setter="set_intensity" getter="get_intensity" default="1.0">
 			Defines the reflection intensity. Intensity modulates the strength of the reflection.
diff --git a/scene/3d/reflection_probe.h b/scene/3d/reflection_probe.h
index 15c2da3ae01..4bf20c89c57 100644
--- a/scene/3d/reflection_probe.h
+++ b/scene/3d/reflection_probe.h
@@ -55,7 +55,7 @@ private:
 	RID probe;
 	float intensity = 1.0;
 	float max_distance = 0.0;
-	Vector3 extents = Vector3(1, 1, 1);
+	Vector3 extents = Vector3(10, 10, 10);
 	Vector3 origin_offset = Vector3(0, 0, 0);
 	bool box_projection = false;
 	bool enable_shadows = false;