diff --git a/src/modules/module-ladspa-sink.c b/src/modules/module-ladspa-sink.c
index bcf622909..b31037b63 100644
--- a/src/modules/module-ladspa-sink.c
+++ b/src/modules/module-ladspa-sink.c
@@ -472,6 +472,8 @@ int pa__init(pa_module*m) {
 
         if (p > n_control || k) {
             pa_log("Too many control values passed, %lu expected.", n_control);
+            if (k)
+                pa_xfree(k);
             goto fail;
         }