diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 947ee53f4e2c33a0396e0682201fd6685ed0bbea..533d5961204b6c28732f54dae9682dade3fb221a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -55,7 +55,7 @@ windows:
     - pwd
     - echo "#--- CONFIGURE ---"
     - cmake --version
-    - cmake -G "Visual Studio 16 2019" -A x64 -T host=x64 -DLIB_MAN=OFF -DQTDIR="$QT_MSVC_DIR" -DQt5_DIR="$QTCMake_DIR/Qt5" -DQt5Test_DIR="$QTCMake_DIR/Qt5Test" -DCMAKE_INCLUDE_PATH="$OPT_DIR/include;$BOOST_INCLUDE_DIR" -DCMAKE_LIBRARY_PATH="$OPT_DIR/lib;$BOOST_LIB_DIR" -DCMAKE_C_COMPILER="cl.exe" -DCMAKE_CXX_COMPILER="cl.exe" -B. ..
+    - cmake -G "Visual Studio 16 2019" -A x64 -T host=x64 -DLIB_MAN=OFF -DCMAKE_PREFIX_PATH="$OPT_DIR" -DQTDIR="$QT_MSVC_DIR" -DQt5_DIR="$QTCMake_DIR/Qt5" -DQt5Test_DIR="$QTCMake_DIR/Qt5Test" -DCMAKE_INCLUDE_PATH="$BOOST_INCLUDE_DIR" -DCMAKE_LIBRARY_PATH="$BOOST_LIB_DIR" -DCMAKE_C_COMPILER="cl.exe" -DCMAKE_CXX_COMPILER="cl.exe" -B. ..
     - echo "#--- BUILD ---"
     - pwd
     - if($CI_PIPELINE_SOURCE -eq "schedule") { cmake --build . --target clean }
diff --git a/Tests/Functional/PyStd/Check.cpp b/Tests/Functional/PyStd/Check.cpp
index 5406f60788d113b927840b6d3d1cd103193fb955..48b0d08b6a3c0a1a9f18755063eebeed22039eab 100644
--- a/Tests/Functional/PyStd/Check.cpp
+++ b/Tests/Functional/PyStd/Check.cpp
@@ -54,7 +54,7 @@ std::unique_ptr<OutputData<double>> domainData(const std::string& test_name,
 #endif
     std::cout << "- system call: " << sys_command << std::endl;
     int err = std::system(sys_command.c_str());
-    std::cout << "- system call returned " << err << std::endl;
+    std::cout << "- system call returned " << err << " (0x" << std::hex << err << ")" << std::endl;
     if (err)
         throw std::runtime_error("Exported Python script did not execute properly");