Index: python/plugins/fTools/tools/doJoinAttributes.py
===================================================================
--- python/plugins/fTools/tools/doJoinAttributes.py	(wersja 12891)
+++ python/plugins/fTools/tools/doJoinAttributes.py	(kopia robocza)
@@ -129,7 +129,7 @@
 		fileCheck = QFile(outName)
 		if fileCheck.exists():
 			filePath = QFileInfo(outName).absoluteFilePath()
-			if filePath.right(4) != ".dbf": filePath = filePath + ".dbf"
+			if filePath.right(4).toUpper() != ".DBF": filePath = filePath + ".dbf"
 			if not outName.isEmpty():
 				self.inTable.clear()
 				self.inTable.insert(filePath)