diff --git a/src/plugins/qt4projectmanager/qt-desktop/qt4desktoptargetfactory.cpp b/src/plugins/qt4projectmanager/qt-desktop/qt4desktoptargetfactory.cpp
index ee6190e93ca..a11765282e0 100644
--- a/src/plugins/qt4projectmanager/qt-desktop/qt4desktoptargetfactory.cpp
+++ b/src/plugins/qt4projectmanager/qt-desktop/qt4desktoptargetfactory.cpp
@@ -123,12 +123,13 @@ QList<BuildConfigurationInfo> Qt4DesktopTargetFactory::availableBuildConfigurati
     foreach (QtVersion *version, knownVersions) {
         if (!version->isValid())
             continue;
+        QtVersion::QmakeBuildConfigs config = version->defaultBuildConfig();
         bool buildAll = version->defaultBuildConfig() & QtVersion::BuildAll;
-        QtVersion::QmakeBuildConfigs config = buildAll ? QtVersion::BuildAll : QtVersion::QmakeBuildConfig(0);
 
         QString dir = defaultShadowBuildDirectory(Qt4Project::defaultTopLevelBuildDirectory(proFilePath), Constants::DESKTOP_TARGET_ID);
         infos.append(BuildConfigurationInfo(version, config, QString(), dir));
-        infos.append(BuildConfigurationInfo(version, config | QtVersion::DebugBuild, QString(), dir));
+        if (buildAll)
+            infos.append(BuildConfigurationInfo(version, config ^ QtVersion::DebugBuild, QString(), dir));
     }
     return infos;
 }
diff --git a/src/plugins/qt4projectmanager/qt-desktop/qt4simulatortargetfactory.cpp b/src/plugins/qt4projectmanager/qt-desktop/qt4simulatortargetfactory.cpp
index 7c94d026c1f..71e8f834d85 100644
--- a/src/plugins/qt4projectmanager/qt-desktop/qt4simulatortargetfactory.cpp
+++ b/src/plugins/qt4projectmanager/qt-desktop/qt4simulatortargetfactory.cpp
@@ -125,11 +125,12 @@ QList<BuildConfigurationInfo> Qt4SimulatorTargetFactory::availableBuildConfigura
     foreach (QtVersion *version, knownVersions) {
         if (!version->isValid())
             continue;
-        bool buildAll = version->defaultBuildConfig() & QtVersion::BuildAll;
-        QtVersion::QmakeBuildConfigs config = buildAll ? QtVersion::BuildAll : QtVersion::QmakeBuildConfig(0);
+        QtVersion::QmakeBuildConfigs config = version->defaultBuildConfig();
+        bool buildAll = config & QtVersion::BuildAll;
         QString dir = defaultShadowBuildDirectory(Qt4Project::defaultTopLevelBuildDirectory(proFilePath), Constants::QT_SIMULATOR_TARGET_ID);
         infos.append(BuildConfigurationInfo(version, config, QString(), dir));
-        infos.append(BuildConfigurationInfo(version, config | QtVersion::DebugBuild, QString(), dir));
+        if (config)
+            infos.append(BuildConfigurationInfo(version, config ^ QtVersion::DebugBuild, QString(), dir));
     }
     return infos;
 }
diff --git a/src/plugins/qt4projectmanager/qt-maemo/qt4maemotargetfactory.cpp b/src/plugins/qt4projectmanager/qt-maemo/qt4maemotargetfactory.cpp
index 4844c90ff80..bf3a4bbb438 100644
--- a/src/plugins/qt4projectmanager/qt-maemo/qt4maemotargetfactory.cpp
+++ b/src/plugins/qt4projectmanager/qt-maemo/qt4maemotargetfactory.cpp
@@ -158,11 +158,12 @@ QList<BuildConfigurationInfo> Qt4MaemoTargetFactory::availableBuildConfiguration
     foreach (QtVersion *version, knownVersions) {
         if (!version->isValid())
             continue;
-        bool buildAll = version->defaultBuildConfig() & QtVersion::BuildAll;
-        QtVersion::QmakeBuildConfigs config = buildAll ? QtVersion::BuildAll : QtVersion::QmakeBuildConfig(0);
+        QtVersion::QmakeBuildConfigs config = version->defaultBuildConfig();
+        bool buildAll = config & QtVersion::BuildAll;
         QString dir = defaultShadowBuildDirectory(Qt4Project::defaultTopLevelBuildDirectory(proFilePath), id);
         infos.append(BuildConfigurationInfo(version, config, QString(), dir));
-        infos.append(BuildConfigurationInfo(version, config | QtVersion::DebugBuild, QString(), dir));
+        if (buildAll)
+            infos.append(BuildConfigurationInfo(version, config ^ QtVersion::DebugBuild, QString(), dir));
     }
     return infos;
 }
diff --git a/src/plugins/qt4projectmanager/qt-s60/qt4symbiantargetfactory.cpp b/src/plugins/qt4projectmanager/qt-s60/qt4symbiantargetfactory.cpp
index 1a3ad9c6ef2..ecc4afe01b0 100644
--- a/src/plugins/qt4projectmanager/qt-s60/qt4symbiantargetfactory.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/qt4symbiantargetfactory.cpp
@@ -144,11 +144,12 @@ QList<BuildConfigurationInfo> Qt4SymbianTargetFactory::availableBuildConfigurati
     foreach (QtVersion *version, knownVersions) {
         if (!version->isValid())
             continue;
-        bool buildAll = version->defaultBuildConfig() & QtVersion::BuildAll;
-        QtVersion::QmakeBuildConfigs config = buildAll ? QtVersion::BuildAll : QtVersion::QmakeBuildConfig(0);
+        QtVersion::QmakeBuildConfigs config = version->defaultBuildConfig();
+        bool buildAll = config & QtVersion::BuildAll;
         QString dir = defaultShadowBuildDirectory(Qt4Project::defaultTopLevelBuildDirectory(proFilePath), Constants::S60_DEVICE_TARGET_ID);
         infos.append(BuildConfigurationInfo(version, config, QString(), dir));
-        infos.append(BuildConfigurationInfo(version, config | QtVersion::DebugBuild, QString(), dir));
+        if (buildAll)
+            infos.append(BuildConfigurationInfo(version, config ^ QtVersion::DebugBuild, QString(), dir));
     }
 
     return infos;