diff --git a/src/mini-atd/main.c b/src/mini-atd/main.c
index 1ae22cf..466154a 100644
--- a/src/mini-atd/main.c
+++ b/src/mini-atd/main.c
@@ -51,7 +51,7 @@ int main(int argc, char* argv[])
 
     // process commandline options
     while(1) {
-        switch(getopt_long(argc, argv, "hVs:p:", options, 0)) {
+        switch(getopt_long(argc, argv, "hVDs:p:", options, 0)) {
         case -1:
             goto done;