diff --git a/src/audio/mixin_mixout/mixin_mixout.c b/src/audio/mixin_mixout/mixin_mixout.c
index 4c428f2b5406..7a3f91012e36 100644
--- a/src/audio/mixin_mixout/mixin_mixout.c
+++ b/src/audio/mixin_mixout/mixin_mixout.c
@@ -307,7 +307,7 @@ static int mixin_process(struct processing_module *mod,
 	if (num_output_buffers == 0)
 		return 0;
 
-	if (num_output_buffers >= MIXIN_MAX_SINKS) {
+	if (num_output_buffers > MIXIN_MAX_SINKS) {
 		comp_err(dev, "mixin_process(): Invalid output buffer count %d",
 			 num_output_buffers);
 		return -EINVAL;