diff --git a/external/imgui b/external/imgui
index fd75685f..527b2c45 160000
--- a/external/imgui
+++ b/external/imgui
@@ -1 +1 @@
-Subproject commit fd75685fb009cff45cc6ed2be6954054950c3b94
+Subproject commit 527b2c45af2f8964f95826bd16ab7c7ed372ae41
diff --git a/src/hello_imgui/doc_params.md b/src/hello_imgui/doc_params.md
index 30a18f05..1637d8b8 100644
--- a/src/hello_imgui/doc_params.md
+++ b/src/hello_imgui/doc_params.md
@@ -1135,7 +1135,7 @@ struct DockingSplit
     // `direction`: *ImGuiDir_* 
     //  (enum with ImGuiDir_Down, ImGuiDir_Down, ImGuiDir_Left, ImGuiDir_Right)*
     //  Direction where this dock space should be created.
-    ImGuiDir_ direction;
+    ImGuiDir direction;
 
     // `ratio`: _float, default=0.25f_. 
     //  Ratio of the initialDock size that should be used by the new dock space.
@@ -1148,7 +1148,7 @@ struct DockingSplit
 
     // Constructor
     DockingSplit(const DockSpaceName& initialDock_ = "", const DockSpaceName& newDock_ = "",
-                 ImGuiDir_ direction_ = ImGuiDir_Down, float ratio_ = 0.25f,
+                 ImGuiDir direction_ = ImGuiDir_Down, float ratio_ = 0.25f,
                  ImGuiDockNodeFlags nodeFlags_ = ImGuiDockNodeFlags_None)
         : initialDock(initialDock_), newDock(newDock_), direction(direction_), ratio(ratio_), nodeFlags(nodeFlags_) {}
 };
diff --git a/src/hello_imgui/docking_params.h b/src/hello_imgui/docking_params.h
index 67bd8f80..c7914dfb 100644
--- a/src/hello_imgui/docking_params.h
+++ b/src/hello_imgui/docking_params.h
@@ -182,7 +182,7 @@ struct DockingSplit
     // `direction`: *ImGuiDir_* 
     //  (enum with ImGuiDir_Down, ImGuiDir_Down, ImGuiDir_Left, ImGuiDir_Right)*
     //  Direction where this dock space should be created.
-    ImGuiDir_ direction;
+    ImGuiDir direction;
 
     // `ratio`: _float, default=0.25f_. 
     //  Ratio of the initialDock size that should be used by the new dock space.
@@ -195,7 +195,7 @@ struct DockingSplit
 
     // Constructor
     DockingSplit(const DockSpaceName& initialDock_ = "", const DockSpaceName& newDock_ = "",
-                 ImGuiDir_ direction_ = ImGuiDir_Down, float ratio_ = 0.25f,
+                 ImGuiDir direction_ = ImGuiDir_Down, float ratio_ = 0.25f,
                  ImGuiDockNodeFlags nodeFlags_ = ImGuiDockNodeFlags_None)
         : initialDock(initialDock_), newDock(newDock_), direction(direction_), ratio(ratio_), nodeFlags(nodeFlags_) {}
 };