diff --git a/CHANGELOG.asciidoc b/CHANGELOG.asciidoc
index 4d9cbfdb9..193673f6b 100644
--- a/CHANGELOG.asciidoc
+++ b/CHANGELOG.asciidoc
@@ -36,6 +36,7 @@ Fixed
 - Worked around a segfault with Qt 5.8 when closing a tab with a search active
 - Fixed various mouse actions (like automatically entering insert mode) not working with Qt 5.8
 - Fixed hints sometimes not working with Qt 5.8
+- `:enter-mode` now refuses to enter modes which can't be entered manually (which caused crashes).
 
 v0.9.1
 ------
diff --git a/qutebrowser/keyinput/modeman.py b/qutebrowser/keyinput/modeman.py
index d86b4996f..eb4baf7f5 100644
--- a/qutebrowser/keyinput/modeman.py
+++ b/qutebrowser/keyinput/modeman.py
@@ -265,6 +265,10 @@ class ModeManager(QObject):
             m = usertypes.KeyMode[mode]
         except KeyError:
             raise cmdexc.CommandError("Mode {} does not exist!".format(mode))
+        if m in [usertypes.KeyMode.hint, usertypes.KeyMode.command,
+                 usertypes.KeyMode.yesno, usertypes.KeyMode.prompt]:
+            raise cmdexc.CommandError(
+                "Mode {} can't be entered manually!".format(mode))
         self.enter(m, 'command')
 
     @pyqtSlot(usertypes.KeyMode, str, bool)
diff --git a/tests/end2end/features/misc.feature b/tests/end2end/features/misc.feature
index 73956931a..c561e0d33 100644
--- a/tests/end2end/features/misc.feature
+++ b/tests/end2end/features/misc.feature
@@ -635,3 +635,9 @@ Feature: Various utility commands.
         And I run :command-accept
         And I set general -> private-browsing to false
         Then the message "blah" should be shown
+
+    ## Modes blacklisted for :enter-mode
+
+    Scenario: Trying to enter command mode with :enter-mode
+        When I run :enter-mode command
+        Then the error "Mode command can't be entered manually!" should be shown