diff --git a/include/client.h b/include/client.h
index 8ecd41704..1f3d9065f 100644
--- a/include/client.h
+++ b/include/client.h
@@ -36,12 +36,6 @@
 struct _Client;
 typedef struct _ClientId *ClientIdPtr;
 
-/* Determine client IDs for caching. Exported on purpose for
- * extensions such as SELinux. */
-extern _X_EXPORT pid_t DetermineClientPid(struct _Client *client);
-extern _X_EXPORT void DetermineClientCmd(pid_t, const char **cmdname,
-                                         const char **cmdargs);
-
 /* Query cached client IDs. Exported on purpose for drivers. */
 extern _X_EXPORT pid_t GetClientPid(struct _Client *client);
 extern _X_EXPORT const char *GetClientCmdName(struct _Client *client);
diff --git a/os/client_priv.h b/os/client_priv.h
index 176e72045..27dc4f36b 100644
--- a/os/client_priv.h
+++ b/os/client_priv.h
@@ -24,4 +24,9 @@ struct _Client;
 void ReserveClientIds(struct _Client *client);
 void ReleaseClientIds(struct _Client *client);
 
+/* Determine client IDs for caching. Exported on purpose for
+ * extensions such as SELinux. */
+pid_t DetermineClientPid(struct _Client *client);
+void DetermineClientCmd(pid_t, const char **cmdname, const char **cmdargs);
+
 #endif /* _XSERVER_DIX_CLIENT_PRIV_H */