diff --git a/librtlsdr/librtlsdr.pro b/librtlsdr/librtlsdr.pro
index aed5c3f9e..abf7835e3 100644
--- a/librtlsdr/librtlsdr.pro
+++ b/librtlsdr/librtlsdr.pro
@@ -9,6 +9,8 @@ QT += core
 TEMPLATE = lib
 TARGET = librtlsdr
 
+CONFIG(MSVC):DEFINES += rtlsdr_EXPORTS
+
 CONFIG(MINGW32):LIBRTLSDRSRC = "C:\softs\librtlsdr"
 CONFIG(MINGW64):LIBRTLSDRSRC = "C:\softs\librtlsdr"
 CONFIG(MSVC):LIBRTLSDRSRC = "C:\softs\librtlsdr"
diff --git a/plugins/samplesource/rtlsdr/rtlsdr.pro b/plugins/samplesource/rtlsdr/rtlsdr.pro
index 05d117b01..07825579a 100644
--- a/plugins/samplesource/rtlsdr/rtlsdr.pro
+++ b/plugins/samplesource/rtlsdr/rtlsdr.pro
@@ -49,7 +49,7 @@ FORMS += rtlsdrgui.ui
 LIBS += -L../../../sdrbase/$${build_subdir} -lsdrbase
 LIBS += -L../../../sdrgui/$${build_subdir} -lsdrgui
 LIBS += -L../../../swagger/$${build_subdir} -lswagger
-LIBS -= -L../../../librtlsdr/$${build_subdir} -llibrtlsdr
+LIBS += -L../../../librtlsdr/$${build_subdir} -llibrtlsdr
 macx {
     LIBS -= -L../../../librtlsdr/$${build_subdir} -llibrtlsdr
     LIBS += -L/opt/local/lib -lrtlsdr