diff --git a/help/help_mp-en.h b/help/help_mp-en.h
index 452cd06f30..1d28369ee0 100644
--- a/help/help_mp-en.h
+++ b/help/help_mp-en.h
@@ -900,3 +900,6 @@ static char help_text[]=
 #define MSGTR_AO_ALSA5_WriteErrorAfterReset "[AO ALSA5] alsa-play: write error after reset: %s - giving up.\n"
 #define MSGTR_AO_ALSA5_OutPutError "[AO ALSA5] alsa-play: output error: %s\n"
 
+// ao_plugin.c
+
+#define MSGTR_AO_PLUGIN_InvalidPlugin "[AO PLUGIN] invalid plugin: %s\n"
diff --git a/libao2/ao_plugin.c b/libao2/ao_plugin.c
index 6cb2f85c55..e40c737de8 100644
--- a/libao2/ao_plugin.c
+++ b/libao2/ao_plugin.c
@@ -4,6 +4,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "mp_msg.h"
+#include "help_mp.h"
 #include "afmt.h"
 #include "audio_out.h"
 #include "audio_out_internal.h"
@@ -87,7 +89,7 @@ int add_plugin(int i,char* cfg){
 	}
 	cnt++;
       }
-      printf("[plugin]: Invalid plugin: %s \n",cfg);
+      mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_PLUGIN_InvalidPlugin,cfg);
       return 0;
     }
     else 
@@ -104,7 +106,7 @@ int add_plugin(int i,char* cfg){
 	}
 	cnt++;
       }
-      printf("[plugin]: Invalid plugin: %s \n",cfg);
+      mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_PLUGIN_InvalidPlugin,cfg); 
       return 0;
     }
     else