--- a/TimeDuration.st	Mon May 14 09:38:25 2018 +0200
+++ b/TimeDuration.st	Mon May 14 09:40:27 2018 +0200
@@ -587,6 +587,12 @@
     "
 ! !
 
+!TimeDuration methodsFor:'Compatibility-Squeak'!
+
+wait
+    Delay waitFor:self
+! !
+
 !TimeDuration methodsFor:'accessing'!
 
 days