diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3f695a92..58bb473f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -48,7 +48,7 @@ endif()
 
 if (GLFW_BUILD_X11)
     target_compile_definitions(glfw PRIVATE _GLFW_X11)
-    target_sources(glfw PRIVATE x11_platform.h xkb_unicode.h x11_init.c
+    target_sources(glfw PRIVATE x11_platform.h x11_init.c
                                 x11_monitor.c x11_window.c xkb_unicode.c
                                 glx_context.c)
 endif()
diff --git a/src/x11_platform.h b/src/x11_platform.h
index 36dfcce1..f3a037f1 100644
--- a/src/x11_platform.h
+++ b/src/x11_platform.h
@@ -452,8 +452,6 @@ typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR)(V
 typedef VkResult (APIENTRY *PFN_vkCreateXcbSurfaceKHR)(VkInstance,const VkXcbSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
 typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)(VkPhysicalDevice,uint32_t,xcb_connection_t*,xcb_visualid_t);
 
-#include "xkb_unicode.h"
-
 #define GLFW_X11_WINDOW_STATE           _GLFWwindowX11 x11;
 #define GLFW_X11_LIBRARY_WINDOW_STATE   _GLFWlibraryX11 x11;
 #define GLFW_X11_MONITOR_STATE          _GLFWmonitorX11 x11;
@@ -462,6 +460,7 @@ typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)(Vk
 #define GLFW_GLX_CONTEXT_STATE          _GLFWcontextGLX glx;
 #define GLFW_GLX_LIBRARY_CONTEXT_STATE  _GLFWlibraryGLX glx;
 
+#define GLFW_INVALID_CODEPOINT 0xffffffffu
 
 // GLX-specific per-context data
 //
@@ -984,6 +983,8 @@ unsigned long _glfwGetWindowPropertyX11(Window window,
                                         unsigned char** value);
 GLFWbool _glfwIsVisualTransparentX11(Visual* visual);
 
+uint32_t _glfwKeySym2UnicodeX11(unsigned int keysym);
+
 void _glfwGrabErrorHandlerX11(void);
 void _glfwReleaseErrorHandlerX11(void);
 void _glfwInputErrorX11(int error, const char* message);
diff --git a/src/x11_window.c b/src/x11_window.c
index 47b9ad1e..f46a7e6c 100644
--- a/src/x11_window.c
+++ b/src/x11_window.c
@@ -1308,7 +1308,7 @@ static void processEvent(XEvent *event)
 
                 _glfwInputKey(window, key, keycode, GLFW_PRESS, mods);
 
-                const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
+                const uint32_t codepoint = _glfwKeySym2UnicodeX11(keysym);
                 if (codepoint != GLFW_INVALID_CODEPOINT)
                     _glfwInputChar(window, codepoint, mods, plain);
             }
@@ -2944,7 +2944,7 @@ const char* _glfwGetScancodeNameX11(int scancode)
     if (keysym == NoSymbol)
         return NULL;
 
-    const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
+    const uint32_t codepoint = _glfwKeySym2UnicodeX11(keysym);
     if (codepoint == GLFW_INVALID_CODEPOINT)
         return NULL;
 
diff --git a/src/xkb_unicode.c b/src/xkb_unicode.c
index 68767cc3..7a4ee10a 100644
--- a/src/xkb_unicode.c
+++ b/src/xkb_unicode.c
@@ -27,7 +27,7 @@
 
 #include "internal.h"
 
-#if defined(_GLFW_X11) || defined(_GLFW_WAYLAND)
+#if defined(_GLFW_X11)
 
 /*
  * Marcus: This code was originally written by Markus G. Kuhn.
@@ -906,7 +906,7 @@ static const struct codepair {
 
 // Convert XKB KeySym to Unicode
 //
-uint32_t _glfwKeySym2Unicode(unsigned int keysym)
+uint32_t _glfwKeySym2UnicodeX11(unsigned int keysym)
 {
     int min = 0;
     int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
@@ -939,5 +939,5 @@ uint32_t _glfwKeySym2Unicode(unsigned int keysym)
     return GLFW_INVALID_CODEPOINT;
 }
 
-#endif // _GLFW_WAYLAND or _GLFW_X11
+#endif // _GLFW_X11
 
diff --git a/src/xkb_unicode.h b/src/xkb_unicode.h
deleted file mode 100644
index d52748ac..00000000
--- a/src/xkb_unicode.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//========================================================================
-// GLFW 3.5 Linux - www.glfw.org
-//------------------------------------------------------------------------
-// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
-//
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any damages
-// arising from the use of this software.
-//
-// Permission is granted to anyone to use this software for any purpose,
-// including commercial applications, and to alter it and redistribute it
-// freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you must not
-//    claim that you wrote the original software. If you use this software
-//    in a product, an acknowledgment in the product documentation would
-//    be appreciated but is not required.
-//
-// 2. Altered source versions must be plainly marked as such, and must not
-//    be misrepresented as being the original software.
-//
-// 3. This notice may not be removed or altered from any source
-//    distribution.
-//
-//========================================================================
-
-#define GLFW_INVALID_CODEPOINT 0xffffffffu
-
-uint32_t _glfwKeySym2Unicode(unsigned int keysym);
-