diff --git a/src/qobuz/qobuzservice.cpp b/src/qobuz/qobuzservice.cpp
index 5df06101..2306a873 100644
--- a/src/qobuz/qobuzservice.cpp
+++ b/src/qobuz/qobuzservice.cpp
@@ -57,10 +57,12 @@
 #include "settings/settingsdialog.h"
 #include "settings/qobuzsettingspage.h"
 
-constexpr Song::Source QobuzService::kSource = Song::Source_Qobuz;
+const Song::Source QobuzService::kSource = Song::Source_Qobuz;
+const char QobuzService::kApiUrl[] = "https://www.qobuz.com/api.json/0.2";
+
 constexpr char QobuzService::kAuthUrl[] = "https://www.qobuz.com/api.json/0.2/user/login";
-constexpr char QobuzService::kApiUrl[] = "https://www.qobuz.com/api.json/0.2";
-constexpr int QobuzService::kLoginAttempts = 2;
+
+const int QobuzService::kLoginAttempts = 2;
 constexpr int QobuzService::kTimeResetLoginAttempts = 60000;
 
 constexpr char QobuzService::kArtistsSongsTable[] = "qobuz_artists_songs";
diff --git a/src/tidal/tidalservice.cpp b/src/tidal/tidalservice.cpp
index 979bcd14..9f87c774 100644
--- a/src/tidal/tidalservice.cpp
+++ b/src/tidal/tidalservice.cpp
@@ -61,14 +61,17 @@
 #include "settings/settingsdialog.h"
 #include "settings/tidalsettingspage.h"
 
-constexpr Song::Source TidalService::kSource = Song::Source_Tidal;
+const Song::Source TidalService::kSource = Song::Source_Tidal;
+
+const char TidalService::kApiUrl[] = "https://api.tidalhifi.com/v1";
+const char TidalService::kResourcesUrl[] = "https://resources.tidal.com";
+
 constexpr char TidalService::kOAuthUrl[] = "https://login.tidal.com/authorize";
 constexpr char TidalService::kOAuthAccessTokenUrl[] = "https://login.tidal.com/oauth2/token";
 constexpr char TidalService::kOAuthRedirectUrl[] = "tidal://login/auth";
 constexpr char TidalService::kAuthUrl[] = "https://api.tidalhifi.com/v1/login/username";
-constexpr char TidalService::kApiUrl[] = "https://api.tidalhifi.com/v1";
-constexpr char TidalService::kResourcesUrl[] = "https://resources.tidal.com";
-constexpr int TidalService::kLoginAttempts = 2;
+
+const int TidalService::kLoginAttempts = 2;
 constexpr int TidalService::kTimeResetLoginAttempts = 60000;
 
 constexpr char TidalService::kArtistsSongsTable[] = "tidal_artists_songs";