diff --git a/WebKitBrowser/WebKitImplementation.cpp b/WebKitBrowser/WebKitImplementation.cpp
index 6aeed782e5..a082bdd5e3 100644
--- a/WebKitBrowser/WebKitImplementation.cpp
+++ b/WebKitBrowser/WebKitImplementation.cpp
@@ -2873,6 +2873,8 @@ static GSourceFuncs _handlerIntervention =
             WKPreferencesSetAllowRunningOfInsecureContent(preferences, _allowMixedContent);
             WKPreferencesSetAllowDisplayOfInsecureContent(preferences, _allowMixedContent);
 
+            WKPreferencesSetDeveloperExtrasEnabled(preferences, true);
+
             // WebSecurity
             WKPreferencesSetWebSecurityEnabled(preferences, !_allowMixedContent);