diff --git a/Jenkinsfile b/Jenkinsfile
index 761eb3d1f71343ce01637e8e5c6e7361edbe5d0f..b07005f1dedd72048fd8b1ec8a85cbde74e293dc 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -230,7 +230,8 @@ pipeline {
               publishReports { }
               warnings(canResolveRelativePaths: false,
                   consoleParsers: [[parserName: 'MSBuild']],
-                  messagesPattern: '.*\\.conan.*')
+                  excludePattern: '.*\\.conan.*',
+                  messagesPattern: '.*QVTK.*')
             }
             failure {
                 dir('build') { deleteDir() }
diff --git a/scripts/cmake/ConanSetup.cmake b/scripts/cmake/ConanSetup.cmake
index 8a578e8f489fbd069a48bfcfb031fd7b733b7584..c1fa22c0fbaad940b635a70f9260a1e8eeba1c34 100644
--- a/scripts/cmake/ConanSetup.cmake
+++ b/scripts/cmake/ConanSetup.cmake
@@ -102,3 +102,8 @@ conan_cmake_run(REQUIRES ${CONAN_REQUIRES}
                 UPDATE
                 BUILD ${OGS_CONAN_BUILD}
 )
+
+if(NOT ${OGS_CONAN_BUILD} MATCHES "never|always|missing")
+    message(STATUS "Warning: Resetting CMake variable OGS_CONAN_BUILD to its default value of 'missing'")
+    set(OGS_CONAN_BUILD "missing" CACHE INTERNAL "")
+endif()