diff --git a/ui/ui.go b/ui/ui.go
index 65f264fc..59a08543 100644
--- a/ui/ui.go
+++ b/ui/ui.go
@@ -1353,11 +1353,6 @@ func lastLineMode(app gowid.IApp) {
 		return nil
 	}))
 
-	MiniBuffer.Register("help", minibufferFn(func(gowid.IApp, ...string) error {
-		OpenTemplatedDialog(appView, "UIHelp", app)
-		return nil
-	}))
-
 	MiniBuffer.Register("no-theme", minibufferFn(func(app gowid.IApp, s ...string) error {
 		mode := theme.Mode(app.GetColorMode()).String() // more concise
 		termshark.DeleteConf(fmt.Sprintf("main.theme-%s", mode))
diff --git a/widgets/minibuffer/minibuffer.go b/widgets/minibuffer/minibuffer.go
index 42d21e50..41663526 100644
--- a/widgets/minibuffer/minibuffer.go
+++ b/widgets/minibuffer/minibuffer.go
@@ -294,10 +294,14 @@ func (w *Widget) handleSelection(keyIsEnter bool, app gowid.IApp) {
 						extraPrefix += string(c)
 					}
 					longestPrefixPartial := partials[selectedIdx]
-					// e.g. "cl" + "ear-" from ["clear-packets", "clear-filter"]
-					longestPrefixPartial.qword = words[len(words)-1] + extraPrefix
-					w.ed.SetText(longestPrefixPartial.Line(), app)
-					w.ed.SetCursorPos(longestPrefixPartial.CursorPos(), app)
+					// if the user types e.g. "help " then hits tab, extraPrefix will be "" (no characters typed
+					// to start selection of next argument) so don't complete.
+					if extraPrefix != "" {
+						// e.g. "cl" + "ear-" from ["clear-packets", "clear-filter"]
+						longestPrefixPartial.qword = words[len(words)-1] + extraPrefix
+						w.ed.SetText(longestPrefixPartial.Line(), app)
+						w.ed.SetCursorPos(longestPrefixPartial.CursorPos(), app)
+					}
 				}
 			}
 		}