diff --git a/rifle.conf b/rifle.conf
index 4242f04..9415693 100644
--- a/rifle.conf
+++ b/rifle.conf
@@ -88,6 +88,9 @@ ext tsv|tab = sc-im -- "$@"
 ext sc = sc-im -- "$@"
 ext xls|xlsx = sc-im -- "$@"
 
+# OpenSCAD
+ext scad, flag f = openscad -- "$@"
+
 # Define the "editor" for text files as first action
 mime ^text,  label editor = $EDITOR -- "$@"
 mime ^text,  label pager  = "$PAGER" -- "$@"