diff --git a/YACReaderLibrary/YACReaderLibrary.pro b/YACReaderLibrary/YACReaderLibrary.pro
index b72f8ceb..3160ac8e 100644
--- a/YACReaderLibrary/YACReaderLibrary.pro
+++ b/YACReaderLibrary/YACReaderLibrary.pro
@@ -311,8 +311,6 @@ isEmpty(DATADIR) {
   DATADIR = $$PREFIX/share
 }
 
-DEFINES += "LIBDIR=\\\"$$LIBDIR\\\""  "DATADIR=\\\"$$DATADIR\\\""
-
 DEFINES += "LIBDIR=\\\"$$LIBDIR\\\""  "DATADIR=\\\"$$DATADIR\\\"" "BINDIR=\\\"$$BINDIR\\\""
 
 #MAKE INSTALL