diff --git a/audio/wavaudio.c b/audio/wavaudio.c
index ea20fed0cc..a8798a1c42 100644
--- a/audio/wavaudio.c
+++ b/audio/wavaudio.c
@@ -97,6 +97,10 @@ static int wav_init_out(HWVoiceOut *hw, struct audsettings *as,
         dolog ("WAVE files can not handle 32bit formats\n");
         return -1;
 
+    case AUDIO_FORMAT_F32:
+        dolog("WAVE files can not handle float formats\n");
+        return -1;
+
     default:
         abort();
     }