diff --git a/doc/help/settings.asciidoc b/doc/help/settings.asciidoc
index 32230c7e9..ebf569c99 100644
--- a/doc/help/settings.asciidoc
+++ b/doc/help/settings.asciidoc
@@ -968,7 +968,7 @@ Background color for prompts.
 
 Type: <<types,QssColor>>
 
-Default: empty
+Default: +pass:[#444444]+
 
 [[colors.prompts.border]]
 === colors.prompts.border
diff --git a/qutebrowser/config/configdata.yml b/qutebrowser/config/configdata.yml
index 5d7999dd3..367a751a8 100644
--- a/qutebrowser/config/configdata.yml
+++ b/qutebrowser/config/configdata.yml
@@ -1565,7 +1565,7 @@ colors.prompts.border:
   desc: Border used around UI elements in prompts.
 
 colors.prompts.bg:
-  default: #444444
+  default: '#444444'
   type: QssColor
   desc: Background color for prompts.