diff --git a/src/main/java/eu/hbp/mip/controllers/VariablesApi.java b/src/main/java/eu/hbp/mip/controllers/VariablesApi.java
index 3b5b07feeb0351a489e10d39f882aa3ef3be0bb9..6d7cce1c7819b64d168f06f94c817177fd461567 100644
--- a/src/main/java/eu/hbp/mip/controllers/VariablesApi.java
+++ b/src/main/java/eu/hbp/mip/controllers/VariablesApi.java
@@ -81,7 +81,6 @@ public class VariablesApi extends WokenClientController {
 
     @ApiOperation(value = "Get variables available for a dataset", response = List.class, responseContainer = "List")
     @Cacheable(value = "availableVariables",
-            key = "#datasets",
             unless = "#result.getStatusCode().value()!=200")
     @RequestMapping(value = "/availableVariables", method = RequestMethod.GET)
     public ResponseEntity getAvailableVariables(