diff --git a/src/init.cpp b/src/init.cpp
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -815,8 +815,8 @@
                   "categories except one or more specified categories."),
         false, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-help-debug",
-                 "Show all debugging options (usage: --help -help-debug)",
-                 false, OptionsCategory::DEBUG_TEST);
+                 "Print help message with debugging options and exit", false,
+                 OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-logips",
                  strprintf("Include IP addresses in debug output (default: %d)",
                            DEFAULT_LOGIPS),
diff --git a/src/qt/paymentrequestplus.cpp b/src/qt/paymentrequestplus.cpp
--- a/src/qt/paymentrequestplus.cpp
+++ b/src/qt/paymentrequestplus.cpp
@@ -150,8 +150,6 @@
         if (result != 1) {
             int error = X509_STORE_CTX_get_error(store_ctx);
             // For testing payment requests, we allow self signed root certs!
-            // This option is just shown in the UI options, if -help-debug is
-            // enabled.
             if (!(error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT &&
                   gArgs.GetBoolArg("-allowselfsignedrootcertificates",
                                    DEFAULT_SELFSIGNED_ROOTCERTS))) {
diff --git a/src/util/system.cpp b/src/util/system.cpp
--- a/src/util/system.cpp
+++ b/src/util/system.cpp
@@ -715,7 +715,8 @@
 }
 
 bool HelpRequested(const ArgsManager &args) {
-    return args.IsArgSet("-?") || args.IsArgSet("-h") || args.IsArgSet("-help");
+    return args.IsArgSet("-?") || args.IsArgSet("-h") ||
+           args.IsArgSet("-help") || args.IsArgSet("-help-debug");
 }
 
 static const int screenWidth = 79;