diff --git a/src/activate/activate.c b/src/activate/activate.c
index 23244fdc62a..d6e2d07ff2f 100644
--- a/src/activate/activate.c
+++ b/src/activate/activate.c
@@ -385,7 +385,7 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argc >= 0);
         assert(argv);
 
-        while ((c = getopt_long(argc, argv, "+hl:aEd", options, NULL)) >= 0)
+        while ((c = getopt_long(argc, argv, "+hl:aE:d", options, NULL)) >= 0)
                 switch(c) {
                 case 'h':
                         help();