diff --git a/.ci/Jenkinsfile b/.ci/Jenkinsfile
index 0fd252253..f42350f04 100644
--- a/.ci/Jenkinsfile
+++ b/.ci/Jenkinsfile
@@ -149,7 +149,7 @@ pipeline {
 	parameters {
 		string(name: 'BUILD_TYPE',
 		       defaultValue: 'beta', /* !!! CHANGE HERE !!! for build type */
-		       description: "Build type to pass on to CMake. Don't change this, you should instead change the default value on .ci/Jenkinsfile")
+		       description: "Build type to pass on to CMake. Should only be changed for one-off builds, otherwise change the default on .ci/Jenkinsfile")
 	}
 
 	stages {
diff --git a/.ci/build.sh b/.ci/build.sh
index 76c714018..45c599f69 100644
--- a/.ci/build.sh
+++ b/.ci/build.sh
@@ -211,7 +211,7 @@ then
 	echo [-] Using MSYSTEM [$MSYSTEM]
 
 	# Point CMake to the toolchain file.
-	cmake_flags_extra="$cmake_flags_extra -D CMAKE_TOOLCHAIN_FILE=\"cmake/$toolchain.cmake\""
+	cmake_flags_extra="$cmake_flags_extra -D \"CMAKE_TOOLCHAIN_FILE=cmake/$toolchain.cmake\""
 elif is_mac
 then
 	# macOS lacks nproc, but sysctl can do the same job.