diff --git a/src/pcm/plugin/alaw.c b/src/pcm/plugin/alaw.c
index 9dbe3ba4..9bfcea8c 100644
--- a/src/pcm/plugin/alaw.c
+++ b/src/pcm/plugin/alaw.c
@@ -352,7 +352,7 @@ static ssize_t alaw_transfer(snd_pcm_plugin_t *plugin,
 #else
 #error "Have to be coded..."
 #endif
-		return dst_size << 1;
+		return src_size << 1;
 	default:
 		return -EIO;
 	}
diff --git a/src/pcm/plugin/mulaw.c b/src/pcm/plugin/mulaw.c
index 095752bd..cbbe02bb 100644
--- a/src/pcm/plugin/mulaw.c
+++ b/src/pcm/plugin/mulaw.c
@@ -362,7 +362,7 @@ static ssize_t mulaw_transfer(snd_pcm_plugin_t *plugin,
 #else
 #error "Have to be coded..."
 #endif
-		return dst_size << 1;
+		return src_size << 1;
 	default:
 		return -EIO;
 	}