diff --git a/core/libs/dplugins/webservices/o2/src/o1twitter.h b/core/libs/dplugins/webservices/o2/src/o1twitter.h
index de1a10e305..1dedfc077c 100644
--- a/core/libs/dplugins/webservices/o2/src/o1twitter.h
+++ b/core/libs/dplugins/webservices/o2/src/o1twitter.h
@@ -1,19 +1,19 @@
 #ifndef O1TWITTER_H
 #define O1TWITTER_H
 
 #include "o0export.h"
 #include "o1.h"
 
 /// Twitter OAuth 1.0 client
 class O0_EXPORT O1Twitter: public O1 {
     Q_OBJECT
 
 public:
     explicit O1Twitter(QObject *parent = 0): O1(parent) {
-        setRequestTokenUrl(QUrl("https://api.twitter.com/oauth/request_token"));
-        setAuthorizeUrl(QUrl("https://api.twitter.com/oauth/authenticate"));
-        setAccessTokenUrl(QUrl("https://api.twitter.com/oauth/access_token"));
+        setRequestTokenUrl(QUrl(QLatin1String("https://api.twitter.com/oauth/request_token")));
+        setAuthorizeUrl(QUrl(QLatin1String("https://api.twitter.com/oauth/authenticate")));
+        setAccessTokenUrl(QUrl(QLatin1String("https://api.twitter.com/oauth/access_token")));
     }
 };
 
 #endif // O1TWITTER_H