diff --git a/src/cas/generic/st/casStreamOS.cc b/src/cas/generic/st/casStreamOS.cc
index 25638f192..7f817a94d 100644
--- a/src/cas/generic/st/casStreamOS.cc
+++ b/src/cas/generic/st/casStreamOS.cc
@@ -185,7 +185,7 @@ casStreamIOWakeup::casStreamIOWakeup () :
 //
 casStreamIOWakeup::~casStreamIOWakeup()
 {
-    this->timer.deatroy ();
+    this->timer.destroy ();
 }
 
 //