diff --git a/imixs-workflow-core/src/main/java/org/imixs/workflow/util/ImixsJSONBuilder.java b/imixs-workflow-core/src/main/java/org/imixs/workflow/util/ImixsJSONBuilder.java
index 419988442..bfadd7f1b 100644
--- a/imixs-workflow-core/src/main/java/org/imixs/workflow/util/ImixsJSONBuilder.java
+++ b/imixs-workflow-core/src/main/java/org/imixs/workflow/util/ImixsJSONBuilder.java
@@ -157,7 +157,7 @@ private static void buildValues(List<Object> values, StringBuffer out) {
                 type = "\"@type\":\"xs:long\"";
             }
             if (valueObject instanceof Float) {
-                type = "\"@type\":\"xs:floatt\"";
+                type = "\"@type\":\"xs:float\"";
             }
             if (valueObject instanceof Double) {
                 type = "\"@type\":\"xs:double\"";