diff --git a/dix/dixfonts.c b/dix/dixfonts.c
index 9608e4b1f..3bad522ac 100644
--- a/dix/dixfonts.c
+++ b/dix/dixfonts.c
@@ -55,6 +55,9 @@ Equipment Corporation.
 #include <X11/X.h>
 #include <X11/Xmd.h>
 #include <X11/Xproto.h>
+
+#include "os/auth.h"
+
 #include "scrnintstr.h"
 #include "resource.h"
 #include "dixstruct.h"
diff --git a/include/os.h b/include/os.h
index 0261d74b8..fffe8eb40 100644
--- a/include/os.h
+++ b/include/os.h
@@ -200,10 +200,6 @@ extern _X_EXPORT void FreeScreenSaverTimer(void);
 
 extern _X_EXPORT void GiveUp(int /*sig */ );
 
-extern _X_EXPORT int set_font_authorizations(char **authorizations,
-                                             int *authlen,
-                                             void *client);
-
 /*
  * This function malloc(3)s buffer, terminating the server if there is not
  * enough memory.
diff --git a/os/auth.h b/os/auth.h
index f632490d6..576fba269 100644
--- a/os/auth.h
+++ b/os/auth.h
@@ -26,4 +26,8 @@ typedef int (*AuthRemCFunc) (AuthRemCArgs);
 #define AuthRstCArgs void
 typedef int (*AuthRstCFunc) (AuthRstCArgs);
 
+int set_font_authorizations(char **authorizations,
+                            int *authlen,
+                            void *client);
+
 #endif /* _XSERVER_OS_AUTH_H */
diff --git a/os/utils.c b/os/utils.c
index 52f64d777..9ba84be28 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -107,6 +107,7 @@ __stdcall unsigned long GetTickCount(void);
 #endif
 
 #include "dix/dix_priv.h"
+#include "os/auth.h"
 #include "os/cmdline.h"
 
 #include "dixstruct.h"