diff --git a/ci/azure/linux_script b/ci/azure/linux_script
index 6538c2145a740688b6470651dd7c651bfc027a94..0298644bf157be1df5a4f38fc4affe0664f603fb 100755
--- a/ci/azure/linux_script
+++ b/ci/azure/linux_script
@@ -34,6 +34,9 @@ if [ "${BUILD_REASON}" != "PullRequest" ]; then
 
   SHASUM=$(sha256sum $ARTIFACTSDIR/$TARBALL | cut '-d ' -f1)
   BYTESIZE=$(wc -c < $ARTIFACTSDIR/$TARBALL)
+  # `set -x` causes these variables to be mangled.
+  # See https://developercommunity.visualstudio.com/content/problem/375679/pipeline-variable-incorrectly-inserts-single-quote.html
+  set +x
   echo "##vso[task.setvariable variable=tarball;isOutput=true]$TARBALL"
   echo "##vso[task.setvariable variable=shasum;isOutput=true]$SHASUM"
   echo "##vso[task.setvariable variable=bytesize;isOutput=true]$BYTESIZE"
diff --git a/ci/azure/macos_script b/ci/azure/macos_script
index 239c3542638b9fb3ca555a97d59ee4af04f27da6..da2d9351dd28bb62542c79f30efef7d71788d3bb 100755
--- a/ci/azure/macos_script
+++ b/ci/azure/macos_script
@@ -98,6 +98,9 @@ if [ "${BUILD_REASON}" != "PullRequest" ]; then
 
   SHASUM=$(shasum -a 256 $TARBALL | cut '-d ' -f1)
   BYTESIZE=$(wc -c < $TARBALL)
+  # `set -x` causes these variables to be mangled.
+  # See https://developercommunity.visualstudio.com/content/problem/375679/pipeline-variable-incorrectly-inserts-single-quote.html
+  set +x
   echo "##vso[task.setvariable variable=tarball;isOutput=true]$TARBALL"
   echo "##vso[task.setvariable variable=shasum;isOutput=true]$SHASUM"
   echo "##vso[task.setvariable variable=bytesize;isOutput=true]$BYTESIZE"