diff --git a/curl-config.in b/curl-config.in
index 7de459318..3aa42f342 100644
--- a/curl-config.in
+++ b/curl-config.in
@@ -22,6 +22,7 @@ Available values for OPTION include:
   --libs      library linking information
   --prefix    curl install prefix
   --version   output version information
+  --vernum    output the version information as a number (hexadecimal)
 EOF
 
     exit $1