diff --git a/library/library.pro b/library/library.pro
index 52a8881..616c534 100644
--- a/library/library.pro
+++ b/library/library.pro
@@ -8,8 +8,16 @@ INCLUDEPATH += $$_PRO_FILE_PWD_/include
 INCLUDEPATH += $$_PRO_FILE_PWD_/include/mobilisis
 INCLUDEPATH += $$_PRO_FILE_PWD_/include/rapidjson
 
-win32 {
-QMAKE_CXXFLAGS += -DCALCULATE_LIBRARY_EXPORTS
+CONFIG(debug, debug|release) {
+    win32 {
+        QMAKE_CXXFLAGS += -DCALCULATE_LIBRARY_EXPORTS
+        QMAKE_LFLAGS += -Wl,--out-implib,debug\libmobility_calc.a
+    }
+} else {
+    win32 {
+        QMAKE_CXXFLAGS += -DCALCULATE_LIBRARY_EXPORTS
+        QMAKE_LFLAGS += -Wl,--out-implib,release\libmobility_calc.a
+    }
 }
 
 SOURCES += \