diff --git a/common.pri b/common.pri
index 41587c3..21b4285 100644
--- a/common.pri
+++ b/common.pri
@@ -3,7 +3,7 @@ CONFIG+=internal_build #remove if you want to build against installed libs
 CHART_BUILD_HEADER_DIR = $$PWD/include
 CHART_BUILD_LIB_DIR = $$PWD/lib
 CHART_BUILD_DIR = $$PWD/build
-CHART_BUILD_BIN = $$PWD/bin
+CHART_BUILD_BIN_DIR = $$PWD/bin
 
 # hack to fix windows builds
 
diff --git a/internal.pri b/internal.pri
index 3cc15c5..9afbf4a 100644
--- a/internal.pri
+++ b/internal.pri
@@ -2,16 +2,16 @@ internal_build:{
     message('Internal build within charts core source tree')
     INCLUDEPATH += $$CHART_BUILD_HEADER_DIR
     LIBS += -L $$CHART_BUILD_LIB_DIR -Wl,-rpath,$$CHART_BUILD_LIB_DIR
-    DESTDIR = $$CHART_BUILD_BIN
+    DESTDIR = $$CHART_BUILD_BIN_DIR
     CONFIG(debug, debug|release) {
     LIBS += -lQtCommercialChartd
 
     #this is ugly hack to work around missing rpath, it simply copies lib
     win32:{
-        copylib.target = QtCommercialChartd.dll
+        copylib.target = $$CHART_BUILD_BIN_DIR/QtCommercialChartd.dll
         copylib.commands = $$QMAKE_COPY $$CHART_BUILD_LIB_DIR\QtCommercialChartd.dll $$CHART_BUILD_BIN_DIR
         copylib.depends = $$CHART_BUILD_LIB_DIR/QtCommercialChartd.dll
-        PRE_TARGETDEPS += QtCommercialChartd.dll
+        PRE_TARGETDEPS += $$CHART_BUILD_BIN_DIR/QtCommercialChartd.dll
         QMAKE_EXTRA_TARGETS +=copylib
     }
 
@@ -20,10 +20,10 @@ internal_build:{
 
     #this is ugly hack to work around missing rpath, it simply copies lib
     win32:{
-        copylib.target = QtCommercialChart
+        copylib.target = $$CHART_BUILD_BIN_DIR/QtCommercialChart
         copylib.commands = $$QMAKE_COPY $$CHART_BUILD_LIB_DIR\QtCommercialChart.dll $$CHART_BUILD_BIN_DIR
         copylib.depends = $$CHART_BUILD_LIB_DIR/QtCommercialChart.dll
-        PRE_TARGETDEPS += QtCommercialChart
+        PRE_TARGETDEPS += $$CHART_BUILD_BIN_DIR/QtCommercialChart
         QMAKE_EXTRA_TARGETS +=copylib
         }
     }