diff --git a/api/reduce_main.C b/api/reduce_main.C
index aaeb331656..0d70f6fcc5 100644
--- a/api/reduce_main.C
+++ b/api/reduce_main.C
@@ -34,6 +34,8 @@
 #include <cstdio>
 #include <cstdlib>
 #include <cmath>
+#include <assert.h>
+
 #include <algorithm>
 
 #endif
diff --git a/checkin_notes b/checkin_notes
index 674e12bff8..29a91b442e 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -5052,3 +5052,9 @@ David  22 June 2008
         client_state.C
     lib/
         coproc.C,h
+
+David  23 June 2008
+    - API: compile fix
+
+    api/
+        reduce_main.C