diff --git a/api/boinc_checkpoint.C b/api/boinc_checkpoint.C
index 2fbd40d1de..7e04c537c7 100644
--- a/api/boinc_checkpoint.C
+++ b/api/boinc_checkpoint.C
@@ -233,7 +233,7 @@ public:
     }
 };
 
-usage in astropulse:
+/* usage in astropulse:
 
 AtomicFileSet files;
 ostream* output;