diff --git a/apps/plugin.c b/apps/plugin.c
index b03ed3109a..aa24b327ca 100644
--- a/apps/plugin.c
+++ b/apps/plugin.c
@@ -607,13 +607,15 @@ static const struct plugin_api rockbox_api = {
 #endif
 
     thread_thaw,
+
+#if (CONFIG_CODEC == SWCODEC)
     semaphore_init,
     semaphore_wait,
     semaphore_release,
     event_init,
     event_wait,
     event_set_state,
-
+#endif
     /* new stuff at the end, sort into place next time
        the API gets incompatible */
 
diff --git a/apps/plugin.h b/apps/plugin.h
index 6dd81caf7e..c6d258377f 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -763,14 +763,16 @@ struct plugin_api {
                                   char *buf, int buflen);
 #endif
 
-    void (*thread_thaw)(struct thread_entry *thread); 
+    void (*thread_thaw)(struct thread_entry *thread);
+
+#if (CONFIG_CODEC == SWCODEC) 
     void (*semaphore_init)(struct semaphore *s, int max, int start);
     void (*semaphore_wait)(struct semaphore *s);
     void (*semaphore_release)(struct semaphore *s);
     void (*event_init)(struct event *e, unsigned int flags);
     void (*event_wait)(struct event *e, unsigned int for_state);
     void (*event_set_state)(struct event *e, unsigned int state);
-
+#endif
 
     /* new stuff at the end, sort into place next time
        the API gets incompatible */