diff --git a/src/common/davitemsfetchjob.cpp b/src/common/davitemsfetchjob.cpp
--- a/src/common/davitemsfetchjob.cpp
+++ b/src/common/davitemsfetchjob.cpp
@@ -116,13 +116,14 @@
         const QDomElement hrefElement = Utils::firstChildElementNS(responseElement, QStringLiteral("DAV:"), QStringLiteral("href"));
         const QString href = hrefElement.text();
 
-        QUrl url = davJob->url();
+        QUrl url = QUrl::fromUserInput(href);
         if (href.startsWith(QLatin1Char('/'))) {
-            // href is only a path, use request url to complete
-            url.setPath(href, QUrl::TolerantMode);
-        } else {
-            // href is a complete url
-            url = QUrl::fromUserInput(href);
+            // href is a relative URL (i.e. missing scheme, hostname and so on)
+            // QUrl would treat this as a file URL be default, avoid that by setting
+            // empty scheme.
+            // Note: We don't want to expand this into a full URL (including hostname)
+            // as some CalDav implementations don't seem to handle that correctly.
+            url.setScheme(QString());
         }
 
         auto _url = url;
diff --git a/src/common/davitemslistjob.cpp b/src/common/davitemslistjob.cpp
--- a/src/common/davitemslistjob.cpp
+++ b/src/common/davitemslistjob.cpp
@@ -220,14 +220,15 @@
             const QDomElement hrefElement = Utils::firstChildElementNS(responseElement, QStringLiteral("DAV:"), QStringLiteral("href"));
             const QString href = hrefElement.text();
 
-            QUrl url = davJob->url();
+            QUrl url = QUrl::fromUserInput(href);
             url.setUserInfo(QString());
             if (href.startsWith(QLatin1Char('/'))) {
-                // href is only a path, use request url to complete
-                url.setPath(href, QUrl::TolerantMode);
-            } else {
-                // href is a complete url
-                url = QUrl::fromUserInput(href);
+                // href is a relative URL (i.e. missing scheme, hostname and so on)
+                // QUrl would treat this as a file URL be default, avoid that by setting
+                // empty scheme.
+                // Note: We don't want to expand this into a full URL (including hostname)
+                // as some CalDav implementations don't seem to handle that correctly.
+                url.setScheme(QString());
             }
 
             QString itemUrl = url.toDisplayString();
diff --git a/src/protocols/caldavprotocol.cpp b/src/protocols/caldavprotocol.cpp
--- a/src/protocols/caldavprotocol.cpp
+++ b/src/protocols/caldavprotocol.cpp
@@ -271,8 +271,7 @@
 
         for (const QString &url : urls) {
             QDomElement hrefElement = document.createElementNS(QStringLiteral("DAV:"), QStringLiteral("href"));
-            const QUrl pathUrl = QUrl::fromUserInput(url);
-            const QDomText textNode = document.createTextNode(pathUrl.toString());
+            const QDomText textNode = document.createTextNode(url);
             hrefElement.appendChild(textNode);
 
             multigetElement.appendChild(hrefElement);