diff --git a/todo.sh b/todo.sh
index ec7a6e4..e291d72 100755
--- a/todo.sh
+++ b/todo.sh
@@ -350,7 +350,8 @@ TODOTXT_DEFAULT_ACTION=${TODOTXT_DEFAULT_ACTION:-}
 TODOTXT_SORT_COMMAND=${TODOTXT_SORT_COMMAND:-env LC_COLLATE=C sort -f -k2}
 TODOTXT_FINAL_FILTER=${TODOTXT_FINAL_FILTER:-cat}
 
-export TODOTXT_VERBOSE TODOTXT_PLAIN TODOTXT_CFG_FILE TODOTXT_FORCE TODOTXT_PRESERVE_LINE_NUMBERS TODOTXT_AUTO_ARCHIVE TODOTXT_DATE_ON_ADD TODOTXT_SORT_COMMAND TODOTXT_FINAL_FILTER
+# Export all TODOTXT_* variables
+export ${!TODOTXT_@}
 
 # Default color map
 export NONE=''