diff --git a/src/modules/module-equalizer-sink.c b/src/modules/module-equalizer-sink.c
index ce5f8c13a..7aea5d3e9 100644
--- a/src/modules/module-equalizer-sink.c
+++ b/src/modules/module-equalizer-sink.c
@@ -232,7 +232,7 @@ static void alloc_input_buffers(struct userdata *u, size_t min_buffer_length) {
         if (u->input[c]) {
             if (!u->first_iteration)
                 memcpy(tmp, u->input[c], u->overlap_size * sizeof(float));
-            free(u->input[c]);
+            fftwf_free(u->input[c]);
         }
         u->input[c] = tmp;
     }
@@ -1344,22 +1344,22 @@ void pa__done(pa_module*m) {
 
     fftwf_destroy_plan(u->inverse_plan);
     fftwf_destroy_plan(u->forward_plan);
-    pa_xfree(u->output_window);
+    fftwf_free(u->output_window);
     for (c = 0; c < u->channels; ++c) {
         pa_aupdate_free(u->a_H[c]);
-        pa_xfree(u->overlap_accum[c]);
-        pa_xfree(u->input[c]);
+        fftwf_free(u->overlap_accum[c]);
+        fftwf_free(u->input[c]);
     }
     pa_xfree(u->a_H);
     pa_xfree(u->overlap_accum);
     pa_xfree(u->input);
-    pa_xfree(u->work_buffer);
-    pa_xfree(u->W);
+    fftwf_free(u->work_buffer);
+    fftwf_free(u->W);
     for (c = 0; c < u->channels; ++c) {
         pa_xfree(u->Xs[c]);
         for (size_t i = 0; i < 2; ++i)
-            pa_xfree(u->Hs[c][i]);
-        pa_xfree(u->Hs[c]);
+            fftwf_free(u->Hs[c][i]);
+        fftwf_free(u->Hs[c]);
     }
     pa_xfree(u->Xs);
     pa_xfree(u->Hs);