diff --git a/src/SenseNet.Client.Tests/UnitTests/ODataRequestTests.cs b/src/SenseNet.Client.Tests/UnitTests/ODataRequestTests.cs
index 515f30e..e1e2f24 100644
--- a/src/SenseNet.Client.Tests/UnitTests/ODataRequestTests.cs
+++ b/src/SenseNet.Client.Tests/UnitTests/ODataRequestTests.cs
@@ -1254,6 +1254,34 @@ public void ActionRequest_NoOperation()
 
     #endregion
 
+    #region Bug fixes
+
+    [TestMethod]
+    public void ODataRequest_ToString_FIX_152_DuplicatedSlash()
+    {
+        var url = "https://example.com";
+
+        var server = new ServerContext { Url = url };
+        var request = new ODataRequest(server) { Path = "/Root/Content", ActionName = "Action1" };
+        Assert.AreEqual("https://example.com/OData.svc/Root('Content')/Action1?metadata=no", request.ToString());
+
+        server = new ServerContext { Url = url };
+        request = new ODataRequest(server) { ContentId = 42, ActionName = "Action1" };
+        Assert.AreEqual("https://example.com/OData.svc/content(42)/Action1?metadata=no", request.ToString());
+
+        url = "https://example.com/";
+
+        server = new ServerContext { Url = url };
+        request = new ODataRequest(server) { Path = "/Root/Content", ActionName = "Action1" };
+        Assert.AreEqual("https://example.com/OData.svc/Root('Content')/Action1?metadata=no", request.ToString());
+
+        server = new ServerContext { Url = url };
+        request = new ODataRequest(server) { ContentId = 42, ActionName = "Action1" };
+        Assert.AreEqual("https://example.com/OData.svc/content(42)/Action1?metadata=no", request.ToString());
+    }
+
+    #endregion
+
     //#region LoadReferenceRequest_*
 
     [TestMethod]
diff --git a/src/SenseNet.Client/ODataRequest.cs b/src/SenseNet.Client/ODataRequest.cs
index 7d00d9c..d6c6529 100644
--- a/src/SenseNet.Client/ODataRequest.cs
+++ b/src/SenseNet.Client/ODataRequest.cs
@@ -447,7 +447,7 @@ private string GetItemUrlBase()
         {
             // short url format that contains only the id
             if (ContentId > 0)
-                return $"{SiteUrl}/{SERVICE_NAME}/content({ContentId})";
+                return $"{SiteUrl.TrimEnd('/')}/{SERVICE_NAME}/content({ContentId})";
 
             // regular url that contains the content path
             var path = Path.TrimStart('/');