diff --git a/ChangeLog b/ChangeLog
index 7b25441cf..d8290f77c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2001-12-29  Adam Fedor  <fedor@gnu.org>
+
+	* Source/behavior.m (class_add_behavior): Add depreciated function 
+	back.
+
 2001-12-27  Adam Fedor  <fedor@gnu.org>
 
 	* Headers/gnustep/base/objc-gnu2next.h: Disable __builtin functions
diff --git a/Source/behavior.m b/Source/behavior.m
index 48123e046..615d14bb1 100644
--- a/Source/behavior.m
+++ b/Source/behavior.m
@@ -138,6 +138,13 @@ behavior_class_add_class (Class class, Class behavior)
   return;
 }
 
+/* The old interface */
+void
+class_add_behavior (Class class, Class behavior)
+{
+  behavior_class_add_class (class, behavior);
+}
+
 #if NeXT_RUNTIME
 void
 behavior_class_add_category (Class class, struct objc_category *category)