diff --git a/src/analyze/analyze.c b/src/analyze/analyze.c
index ae635f0368..93bc9c0273 100644
--- a/src/analyze/analyze.c
+++ b/src/analyze/analyze.c
@@ -1545,9 +1545,9 @@ static int help(int argc, char *argv[], void *userdata) {
                "Commands:\n"
                "  time                     Print time spent in the kernel\n"
                "  blame                    Print list of running units ordered by time to init\n"
-               "  critical-chain           Print a tree of the time critical chain of units\n"
+               "  critical-chain [UNIT...] Print a tree of the time critical chain of units\n"
                "  plot                     Output SVG graphic showing service initialization\n"
-               "  dot                      Output dependency graph in man:dot(1) format\n"
+               "  dot [UNIT...]            Output dependency graph in man:dot(1) format\n"
                "  set-log-level LEVEL      Set logging threshold for manager\n"
                "  set-log-target TARGET    Set logging target for manager\n"
                "  get-log-level            Get logging threshold for manager\n"