diff --git a/main/src/com/google/refine/browsing/facets/RangeFacet.java b/main/src/com/google/refine/browsing/facets/RangeFacet.java
index 6b63cf11e..d2c696a46 100644
--- a/main/src/com/google/refine/browsing/facets/RangeFacet.java
+++ b/main/src/com/google/refine/browsing/facets/RangeFacet.java
@@ -107,6 +107,8 @@ public class RangeFacet implements Facet {
                 
                 writer.key(FROM); writer.value(_from);
                 writer.key(TO); writer.value(_to);
+            } else {
+                writer.key("error"); writer.value("No numeric value present.");
             }
             
             writer.key("baseNumericCount"); writer.value(_baseNumericCount);