diff --git a/CKAN.schema b/CKAN.schema
index e2fd249e06..085d57ab1a 100644
--- a/CKAN.schema
+++ b/CKAN.schema
@@ -432,7 +432,7 @@
         },
         "install_to" : {
             "description" : "Where file should be installed to. As of v1.2, GameData may take a path",
-            "oneOf" : [
+            "anyOf" : [
                 {
                     "description" : "Spec version 1 targets",
                     "enum"        : [ "GameData", "Ships", "GameRoot", "Tutorial", "Scenarios" ]
diff --git a/Tests/NetKAN/Validators/ObeysCKANSchemaValidatorTests.cs b/Tests/NetKAN/Validators/ObeysCKANSchemaValidatorTests.cs
index 23580a009d..386db6c2dc 100644
--- a/Tests/NetKAN/Validators/ObeysCKANSchemaValidatorTests.cs
+++ b/Tests/NetKAN/Validators/ObeysCKANSchemaValidatorTests.cs
@@ -52,6 +52,18 @@ public void Validate_DuplicateLocalizations_Throws(string json, string localizat
             );
         }
 
+        public void Validate_InstallToGameDataSlashmods_DoesNotThrow()
+        {
+            Assert.DoesNotThrow(
+                () => TryModule(boringModule, null, "install",
+                                JArray.Parse(@"[
+                                    {
+                                        ""find"":       ""BetterPartsManager"",
+                                        ""install_to"": ""GameData/Mods""
+                                    }
+                                ]")));
+        }
+
         private void TryModule(string json, string removeProperty = null, string addProperty = null, JToken addPropertyValue = null)
         {
             // Arrange