diff --git a/src/os/gfx/linux/os_gfx_linux.c b/src/os/gfx/linux/os_gfx_linux.c
index 54c31736..a125f5c3 100644
--- a/src/os/gfx/linux/os_gfx_linux.c
+++ b/src/os/gfx/linux/os_gfx_linux.c
@@ -1,6 +1,11 @@
 // Copyright (c) 2024 Epic Games Tools
 // Licensed under the MIT license (https://opensource.org/license/mit/)
 
+////////////////////////////////
+//~ rjf: Prototypes (which seem to sometimes be missing)
+
+int XLookupString(XKeyEvent *event_struct, char *buffer_return, int bytes_buffer, KeySym *keysym_return, XComposeStatus *status_in_out);
+
 ////////////////////////////////
 //~ rjf: Helpers
 
diff --git a/src/os/gfx/linux/os_gfx_linux.h b/src/os/gfx/linux/os_gfx_linux.h
index 4a562ae5..96341575 100644
--- a/src/os/gfx/linux/os_gfx_linux.h
+++ b/src/os/gfx/linux/os_gfx_linux.h
@@ -14,17 +14,6 @@
 #include <X11/keysym.h>
 #include <X11/keysymdef.h>
 
-////////////////////////////////
-//~ rjf: Prototypes (which seem to sometimes be missing)
-
-typedef struct _XComposeStatus
-{
-  XPointer compose_ptr;
-  int chars_matched;
-}
-XComposeStatus;
-int XLookupString(XKeyEvent *event_struct, char *buffer_return, int bytes_buffer, KeySym *keysym_return, XComposeStatus *status_in_out);
-
 ////////////////////////////////
 //~ rjf: Window State