diff --git a/doc/classes/TabContainer.xml b/doc/classes/TabContainer.xml
index 8ec4489fb09..d2339976c59 100644
--- a/doc/classes/TabContainer.xml
+++ b/doc/classes/TabContainer.xml
@@ -36,10 +36,10 @@
 		<method name="get_tab_control" qualifiers="const">
 			<return type="Control">
 			</return>
-			<argument index="0" name="idx" type="int">
+			<argument index="0" name="tab_idx" type="int">
 			</argument>
 			<description>
-				Returns the currently visible tab's [Control] node.
+				Returns the [Control] node from the tab at index [code]tab_idx[/code].
 			</description>
 		</method>
 		<method name="get_tab_count" qualifiers="const">
diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp
index b045ff4fe1c..d4217838a10 100644
--- a/scene/gui/tab_container.cpp
+++ b/scene/gui/tab_container.cpp
@@ -990,7 +990,7 @@ void TabContainer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_current_tab"), &TabContainer::get_current_tab);
 	ClassDB::bind_method(D_METHOD("get_previous_tab"), &TabContainer::get_previous_tab);
 	ClassDB::bind_method(D_METHOD("get_current_tab_control"), &TabContainer::get_current_tab_control);
-	ClassDB::bind_method(D_METHOD("get_tab_control", "idx"), &TabContainer::get_tab_control);
+	ClassDB::bind_method(D_METHOD("get_tab_control", "tab_idx"), &TabContainer::get_tab_control);
 	ClassDB::bind_method(D_METHOD("set_tab_align", "align"), &TabContainer::set_tab_align);
 	ClassDB::bind_method(D_METHOD("get_tab_align"), &TabContainer::get_tab_align);
 	ClassDB::bind_method(D_METHOD("set_tabs_visible", "visible"), &TabContainer::set_tabs_visible);