diff --git a/spa/plugins/audioconvert/channelmix-ops-sse.c b/spa/plugins/audioconvert/channelmix-ops-sse.c
index 052e125bb..1bd4fa783 100644
--- a/spa/plugins/audioconvert/channelmix-ops-sse.c
+++ b/spa/plugins/audioconvert/channelmix-ops-sse.c
@@ -204,7 +204,7 @@ channelmix_f32_5p1_2_sse(struct channelmix *mix, uint32_t n_dst, void * SPA_REST
 			ctr = _mm_mul_ps(_mm_load_ps(&sFC[n]), clev);
 			ctr = _mm_add_ps(ctr, _mm_mul_ps(_mm_load_ps(&sLFE[n]), llev));
 			in = _mm_mul_ps(_mm_load_ps(&sSL[n]), slev0);
-			in = _mm_add_ss(in, ctr);
+			in = _mm_add_ps(in, ctr);
 			in = _mm_add_ps(in, _mm_mul_ps(_mm_load_ps(&sFL[n]), v0));
 			_mm_store_ps(&dFL[n], in);
 			in = _mm_mul_ps(_mm_load_ps(&sSR[n]), slev1);