--- a/src/src.pro	2018-05-29 13:11:55.000000000 +0200
+++ b/src/src.pro	2018-07-11 20:02:51.415773874 +0200
@@ -99,7 +99,7 @@
 	RESOURCES += ../icons/icon.qrc
 
 	isEmpty(PREFIX) {
-		PREFIX = /usr/local
+		PREFIX = /usr
 	}
 	isEmpty(BINDIR) {
 		BINDIR = bin
--- a/src/locale_dialog.cpp
+++ b/src/locale_dialog.cpp
@@ -85,7 +85,7 @@
 	if (paths.isEmpty()) {
 		QString appdir = QCoreApplication::applicationDirPath();
 		paths.append(appdir);
-		paths.append(appdir + "/../share/" + QCoreApplication::applicationName().toLower());
+		paths.append("/usr/share");
 		paths.append(appdir + "/../Resources");
 	}
 	foreach (const QString& path, paths) {
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -46,7 +46,7 @@
 	QString path = app.applicationDirPath();
 	QStringList paths;
 	paths.append(path + "/data/");
-	paths.append(path + "/../share/tanglet/data/");
+	paths.append("/usr/share/data/");
 	paths.append(path + "/../Resources/data/");
 	QDir::setSearchPaths("tanglet", paths);