diff --git a/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp b/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
index 66201cb98bc..1de167bdbb2 100644
--- a/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
+++ b/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
@@ -341,12 +341,14 @@ QVariantMap DefaultPropertyProvider::autoGeneratedProperties(const ProjectExplor
             canonicalName.chop(version.size());
             if (!canonicalName.isEmpty() && !version.isEmpty()
                     && sysrootAbs.startsWith(developerPath)) {
-                if (sysrootAbs.toLower().endsWith(QStringLiteral("/%1.sdk")
-                                                  .arg(canonicalName + version)))
+                if (sysrootAbs.endsWith(QStringLiteral("/%1.sdk").arg(canonicalName + version),
+                                        Qt::CaseInsensitive)) {
                     data.insert(QLatin1String(XCODE_SDK), QString(canonicalName + version));
-                if (sysrootAbs.toLower().endsWith(QStringLiteral("/%1.sdk")
-                                                  .arg(canonicalName)))
+                }
+                if (sysrootAbs.endsWith(QStringLiteral("/%1.sdk").arg(canonicalName),
+                                        Qt::CaseInsensitive)) {
                     data.insert(QLatin1String(XCODE_SDK), canonicalName);
+                }
             }
         }
     }