diff --git a/ImFileDialog.cpp b/ImFileDialog.cpp
index 53832d9..81e04b1 100644
--- a/ImFileDialog.cpp
+++ b/ImFileDialog.cpp
@@ -14,6 +14,7 @@
 #include "stb_image.h"
 
 #ifdef _WIN32
+#define NOMINMAX
 #include <windows.h>
 #include <shellapi.h>
 #include <lmcons.h>
@@ -1406,10 +1407,9 @@ namespace ifd {
 				m_finalize();
 		}
 
-		int escapeKey = ImGui::GetIO().KeyMap[ImGuiKey_Escape];
-		if (ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows) &&
-			 escapeKey >= 0 && ImGui::IsKeyPressed(escapeKey))
-			m_isOpen = false;
+        if (ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows) &&
+             ImGuiKey_Escape >= 0 && ImGui::IsKeyPressed(ImGuiKey_Escape))
+            m_isOpen = false;
 	}
 }