diff --git a/direct/src/ffi/genPyCode b/direct/src/ffi/genPyCode
index 62c8a8b37d..5da95dbcc2 100755
--- a/direct/src/ffi/genPyCode
+++ b/direct/src/ffi/genPyCode
@@ -18,8 +18,9 @@ optimizeFlag=""
 ppython=ppython
 ppythonOptimizeFlag=""
 
-while getopts gtpven flag; do
+while getopts ogtpven flag; do
   case $flag in
+    o) extra_genPyCode_libs="$extra_genPyCode_libs libotp" ;;
     g) extra_genPyCode_libs="$extra_genPyCode_libs libgateway" ;;
     t) extra_genPyCode_libs="$extra_genPyCode_libs libtoontown" ;;
     p) extra_genPyCode_libs="$extra_genPyCode_libs libpirates" ;;