diff --git a/magnolia-ui-framework/src/main/java/info/magnolia/ui/framework/action/AbstractCommandAction.java b/magnolia-ui-framework/src/main/java/info/magnolia/ui/framework/action/AbstractCommandAction.java
index fa29ffe..769e269 100644
--- a/magnolia-ui-framework/src/main/java/info/magnolia/ui/framework/action/AbstractCommandAction.java
+++ b/magnolia-ui-framework/src/main/java/info/magnolia/ui/framework/action/AbstractCommandAction.java
@@ -145,10 +145,14 @@ public class AbstractCommandAction<D extends CommandActionDefinition> extends Ab
     }
 
     /**
-     * @return the <em>immutable</em> map of parameters to be used for command execution.
+     * @return the <em>immutable</em> map of parameters to be used for command execution or null when there are no parameters provided.
      * @see AbstractCommandAction#buildParams(javax.jcr.Item)
      */
     public final Map<String, Object> getParams() {
+        if (params == null) {
+            // not every command needs params (and CommandsManager doesn't require them to be passed on either).
+            return null;
+        }
         return Collections.unmodifiableMap(params);
     }