diff --git a/tools/topology/sof/pipe-pcm-media.m4 b/tools/topology/sof/pipe-pcm-media.m4
index 0979c430367c..75a434b4a8ac 100644
--- a/tools/topology/sof/pipe-pcm-media.m4
+++ b/tools/topology/sof/pipe-pcm-media.m4
@@ -68,8 +68,8 @@ W_BUFFER(1,COMP_BUFFER_SIZE(4,
 	COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES),
 	PLATFORM_COMP_MEM_CAP)
 
-# Buffer B2 is on fixed rate sink side of SRC. Set it 1.5 * rate.
-W_BUFFER(2, COMP_BUFFER_SIZE(3,
+# Buffer B2 is on fixed rate sink side of SRC.
+W_BUFFER(2, COMP_BUFFER_SIZE(4,
 	COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES),
 	PLATFORM_COMP_MEM_CAP)