diff --git a/ports/ci/appveyor/build.bat b/ports/ci/appveyor/build.bat
index 1456500..1d72d03 100755
--- a/ports/ci/appveyor/build.bat
+++ b/ports/ci/appveyor/build.bat
@@ -16,7 +16,7 @@ REM along with Webcamoid. If not, see <http://www.gnu.org/licenses/>.
 REM
 REM Web-Site: http://webcamoid.github.io/
 
-set INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%\ports\deploy\temp_priv\data
+set INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%\ports\deploy\temp_priv
 
 echo.
 echo Building x64 virtual camera driver
diff --git a/ports/ci/travis/build.sh b/ports/ci/travis/build.sh
index 4010567..c342535 100644
--- a/ports/ci/travis/build.sh
+++ b/ports/ci/travis/build.sh
@@ -19,7 +19,7 @@
 # Web-Site: http://webcamoid.github.io/
 
 BUILDSCRIPT=dockerbuild.sh
-INSTALL_PREFIX=${TRAVIS_BUILD_DIR}/ports/deploy/temp_priv/data
+INSTALL_PREFIX=${TRAVIS_BUILD_DIR}/ports/deploy/temp_priv
 
 if [ "${TRAVIS_OS_NAME}" = linux ]; then
     sudo mount --bind root.x86_64 root.x86_64
diff --git a/ports/deploy/deploy_mac.py b/ports/deploy/deploy_mac.py
index 11c4104..8833ced 100644
--- a/ports/deploy/deploy_mac.py
+++ b/ports/deploy/deploy_mac.py
@@ -65,9 +65,6 @@ class Deploy(DTDeployBase.DeployBase, DTQt5.Qt5Tools):
                                                       self.programVersion))
 
     def prepare(self):
-        print('Executing make install')
-        params = {'INSTALL_ROOT': self.installDir}
-        self.makeInstall(self.buildDir, params)
         self.detectTargetArch()
         print('Stripping symbols')
         self.binarySolver.stripSymbols(self.installDir)
diff --git a/ports/deploy/deploy_posix_windows.py b/ports/deploy/deploy_posix_windows.py
index b5d3693..5caa668 100644
--- a/ports/deploy/deploy_posix_windows.py
+++ b/ports/deploy/deploy_posix_windows.py
@@ -75,10 +75,6 @@ class Deploy(DTDeployBase.DeployBase, DTQt5.Qt5Tools):
             os.remove(afile)
 
     def prepare(self):
-        print('Executing make install')
-        params = {'INSTALL_ROOT': self.installDir}
-        self.makeInstall(self.buildDir, params)
-
         if self.targetArch == '32bit':
             self.binarySolver.sysBinsPath = ['/usr/i686-w64-mingw32/bin']
         else:
diff --git a/ports/deploy/deploy_windows.py b/ports/deploy/deploy_windows.py
index 4051727..e675507 100644
--- a/ports/deploy/deploy_windows.py
+++ b/ports/deploy/deploy_windows.py
@@ -59,8 +59,6 @@ class Deploy(DTDeployBase.DeployBase, DTQt5.Qt5Tools):
         self.changeLog = os.path.join(self.rootDir, 'ChangeLog')
 
     def prepare(self):
-        print('Executing make install')
-        self.makeInstall(self.buildDir)
         self.detectTargetArch()
 
         if self.qtIFWVersion == '' or int(self.qtIFWVersion.split('.')[0]) < 3: