diff --git a/utils.h b/utils.h
index e83db5c..d2a0fc2 100644
--- a/utils.h
+++ b/utils.h
@@ -318,9 +318,12 @@
 // success, false otherwise.
 bool SetCpuShares(CpuShares shares);
 
-// Assumes data points to a Closure. Runs it and returns FALSE;
+// Assumes |data| points to a Closure. Runs it and returns FALSE;
 gboolean GlibRunClosure(gpointer data);
 
+// Destroys the Closure pointed by |data|.
+void GlibDestroyClosure(gpointer data);
+
 // Converts seconds into human readable notation including days, hours, minutes
 // and seconds. For example, 185 will yield 3m5s, 4300 will yield 1h11m40s, and
 // 360000 will yield 4d4h0m0s.  Zero padding not applied. Seconds are always