diff --git a/Sources/XMLCoder/Auxiliaries/XMLStackParser.swift b/Sources/XMLCoder/Auxiliaries/XMLStackParser.swift
index 07ec9b51..8890b8c6 100644
--- a/Sources/XMLCoder/Auxiliaries/XMLStackParser.swift
+++ b/Sources/XMLCoder/Auxiliaries/XMLStackParser.swift
@@ -7,6 +7,9 @@
 //
 
 import Foundation
+#if canImport(FoundationXML)
+import FoundationXML
+#endif
 
 class XMLStackParser: NSObject {
     var root: XMLCoderElement?
@@ -126,7 +129,7 @@ extension XMLStackParser: XMLParserDelegate {
                 namespaceURI: String?,
                 qualifiedName: String?,
                 attributes attributeDict: [String: String] = [:]) {
-        #if os(Linux)
+        #if os(Linux) && !compiler(>=5.1)
         // For some reason, element names on linux are coming out with the namespace after the name
         // https://bugs.swift.org/browse/SR-11191
         let elementName = elementName.components(separatedBy: ":").reversed().joined(separator: ":")
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 1b090d11..a5aaae93 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -36,6 +36,14 @@ jobs:
     env:
       IOS_DEVICE: 'platform=iOS Simulator,OS=12.2,name=iPhone SE'
       TVOS_DEVICE: 'platform=tvOS Simulator,OS=12.2,name=Apple TV 4K'
+- job: test_xcodebuild_11_0
+  pool:
+    vmImage: 'macos-latest'
+  steps:
+  - bash: ./test_xcodebuild.sh Xcode_11
+    env:
+      IOS_DEVICE: 'platform=iOS Simulator,OS=13.0,name=iPhone 8'
+      TVOS_DEVICE: 'platform=tvOS Simulator,OS=13.0,name=Apple TV 4K'
       CODECOV_JOB: 'true'
       CODECOV_TOKEN: $(codecovToken)
 - job: test_swiftpm
@@ -43,9 +51,15 @@ jobs:
     vmImage: 'macos-latest'
   steps:
   - script: ./test_swiftpm.sh
-- job: test_linux
+- job: test_linux_5_0
+  pool:
+    vmImage: 'Ubuntu 16.04'
+  container: norionomura/swift:503
+  steps:
+  - script: ./test_linux.sh
+- job: test_linux_5_1
   pool:
     vmImage: 'Ubuntu 16.04'
-  container: norionomura/swift:501
+  container: norionomura/swift:51
   steps:
   - script: ./test_linux.sh