diff --git a/src/ImGui.NET/ImGuiTextEditCallback.cs b/src/ImGui.NET/ImGuiTextEditCallback.cs
index 04e5500..4c67dcc 100644
--- a/src/ImGui.NET/ImGuiTextEditCallback.cs
+++ b/src/ImGui.NET/ImGuiTextEditCallback.cs
@@ -1,4 +1,7 @@
-namespace ImGuiNET
+using System.Runtime.InteropServices;
+
+namespace ImGuiNET
 {
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
     public unsafe delegate int ImGuiInputTextCallback(ImGuiInputTextCallbackData* data);
 }