diff --git a/src/pcm/Traits.hxx b/src/pcm/Traits.hxx
index 4e68191f6..ac1ac532d 100644
--- a/src/pcm/Traits.hxx
+++ b/src/pcm/Traits.hxx
@@ -63,7 +63,7 @@ struct SampleTraits<SampleFormat::S8> {
 	 * arithmetic without risking an (integer) overflow or
 	 * (floating point) precision loss.
 	 */
-	typedef int_least16_t long_type;
+	typedef int_least32_t long_type;
 
 	/**
 	 * The size of one sample in bytes.