diff --git a/spa/plugins/audioconvert/resample.c b/spa/plugins/audioconvert/resample.c
index 71901333b..ae89929d0 100644
--- a/spa/plugins/audioconvert/resample.c
+++ b/spa/plugins/audioconvert/resample.c
@@ -391,6 +391,8 @@ static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
 
 static void update_rate_match(struct impl *this, bool passthrough, uint32_t out_size, uint32_t in_queued)
 {
+	double r = this->rate_scale / this->props.rate;
+
 	if (this->io_rate_match) {
 		uint32_t delay, match_size;
 
@@ -399,9 +401,9 @@ static void update_rate_match(struct impl *this, bool passthrough, uint32_t out_
 			match_size = out_size;
 		} else {
 			if (SPA_FLAG_IS_SET(this->io_rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE))
-				resample_update_rate(&this->resample, this->rate_scale * this->io_rate_match->rate);
+				resample_update_rate(&this->resample, r * this->io_rate_match->rate);
 			else
-				resample_update_rate(&this->resample, this->rate_scale);
+				resample_update_rate(&this->resample, r);
 
 			delay = resample_delay(&this->resample) + in_queued;
 			match_size = resample_in_len(&this->resample, out_size);
@@ -412,12 +414,13 @@ static void update_rate_match(struct impl *this, bool passthrough, uint32_t out_
 		spa_log_trace_fp(this->log, "%p: next match:%u queued:%u delay:%u", this, match_size,
 				in_queued, delay);
 	} else {
-		resample_update_rate(&this->resample, this->rate_scale * this->props.rate);
+		resample_update_rate(&this->resample, r);
 	}
 }
 static inline bool is_passthrough(struct impl *this)
 {
-	return this->resample.i_rate == this->resample.o_rate && this->rate_scale == 1.0 &&
+	return this->resample.i_rate == this->resample.o_rate &&
+		this->rate_scale == 1.0 && this->props.rate == 1.0 &&
 		(this->io_rate_match == NULL || this->props.disabled ||
 		 !SPA_FLAG_IS_SET(this->io_rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE));
 }