diff --git a/openEMS.pro b/openEMS.pro
index 0098bf2..fd09752 100644
--- a/openEMS.pro
+++ b/openEMS.pro
@@ -15,10 +15,9 @@ LIBS += -L../CSXCAD \
     -lfparser \
     -L../tinyxml \
     -ltinyxml
-QMAKE_LFLAGS += \'-Wl,-rpath,\$$ORIGIN/../CSXCAD\' 
-QMAKE_LFLAGS += \'-Wl,-rpath,\$$ORIGIN/../fparser\' 
-QMAKE_LFLAGS += \'-Wl,-rpath,\$$ORIGIN/../tinyxml\' 
-
+QMAKE_LFLAGS += '-Wl,-rpath,\$$ORIGIN/../CSXCAD'
+QMAKE_LFLAGS += '-Wl,-rpath,\$$ORIGIN/../fparser'
+QMAKE_LFLAGS += '-Wl,-rpath,\$$ORIGIN/../tinyxml'
 SOURCES += main.cpp \
     tools/ErrorMsg.cpp \
     tools/AdrOp.cpp \