diff --git a/cnd.discovery/src/org/netbeans/modules/cnd/discovery/api/QtInfoProvider.java b/cnd.discovery/src/org/netbeans/modules/cnd/discovery/api/QtInfoProvider.java
--- a/cnd.discovery/src/org/netbeans/modules/cnd/discovery/api/QtInfoProvider.java
+++ b/cnd.discovery/src/org/netbeans/modules/cnd/discovery/api/QtInfoProvider.java
@@ -109,7 +109,7 @@
             FileObject projectDir = conf.getBaseFSPath().getFileObject();
             if (projectDir != null && projectDir.isValid()) {
                 try {
-                    FileObject qtMakeFile = RemoteFileUtil.getFileObject(projectDir, MakeConfiguration.NBPROJECT_FOLDER + "/qt-" + conf.getName() + ".mk"); //NOI18N
+                    FileObject qtMakeFile = RemoteFileUtil.getFileObject(projectDir, MakeConfiguration.NBPROJECT_FOLDER + "/qt-" + conf.getName() + ".nb"); //NOI18N
                     Project project = ProjectManager.getDefault().findProject(projectDir);
                     if (project != null && qtMakeFile != null && qtMakeFile.isValid()) {
                         for (String str : qtMakeFile.asLines()) {
diff --git a/cnd.makeproject/src/org/netbeans/modules/cnd/makeproject/configurations/ConfigurationMakefileWriter.java b/cnd.makeproject/src/org/netbeans/modules/cnd/makeproject/configurations/ConfigurationMakefileWriter.java
--- a/cnd.makeproject/src/org/netbeans/modules/cnd/makeproject/configurations/ConfigurationMakefileWriter.java
+++ b/cnd.makeproject/src/org/netbeans/modules/cnd/makeproject/configurations/ConfigurationMakefileWriter.java
@@ -604,6 +604,7 @@
             // It is important to generate makefile in current directory, and then move it to nbproject/.
             // Otherwise qmake will complain that sources are not found.
             bw.write("\t${QMAKE} VPATH=. " + qmakeSpec + "-o qttmp-"+MakeConfiguration.CND_CONF_MACRO+".mk nbproject/qt-"+MakeConfiguration.CND_CONF_MACRO+".pro\n"); // NOI18N
+            bw.write("\t-cp -f qttmp-"+MakeConfiguration.CND_CONF_MACRO+".mk nbproject/qt-"+MakeConfiguration.CND_CONF_MACRO+".nb\n"); // NOI18N
             bw.write("\tmv -f qttmp-"+MakeConfiguration.CND_CONF_MACRO+".mk nbproject/qt-"+MakeConfiguration.CND_CONF_MACRO+".mk\n"); // NOI18N
 
             // Removed paths tweak for Windows as when -spec is used everything works....