diff --git a/general.pri b/general.pri
index 9156999..9f790b4 100644
--- a/general.pri
+++ b/general.pri
@@ -12,7 +12,17 @@ unix {
     QMAKE_LFLAGS += "-Wl,--rpath=./"
 }
 # prefix
-targetprefix = .
+targetprefix = $$(TARGET_PREFIX)
+equals(targetprefix, "") {
+    win32 {
+        targetprefix = ../../..
+    } else {
+        targetprefix = ../..
+    }
+}
+message("Using target prefix \"$${targetprefix}\".")
+# print install root
+message("Using install root \"$$(INSTALL_ROOT)\".")
 # target
 CONFIG(debug, debug|release) {
     TARGET = $$targetprefix/$${projectname}d
diff --git a/passwordfile.pro b/passwordfile.pro
index 418be3f..637459e 100644
--- a/passwordfile.pro
+++ b/passwordfile.pro
@@ -1,4 +1,5 @@
 projectname = passwordfile
+VERSION = 2.0.5
 
 # include ../../common.pri when building as part of a subdirs project; otherwise include general.pri
 !include(../../common.pri) {