diff --git a/processing/src/main/java/io/druid/query/filter/ExtractionDimFilter.java b/processing/src/main/java/io/druid/query/filter/ExtractionDimFilter.java
index 7de7d51c8db..329ee1e6d0f 100644
--- a/processing/src/main/java/io/druid/query/filter/ExtractionDimFilter.java
+++ b/processing/src/main/java/io/druid/query/filter/ExtractionDimFilter.java
@@ -43,7 +43,6 @@ public class ExtractionDimFilter implements DimFilter
   )
   {
     Preconditions.checkArgument(dimension != null, "dimension must not be null");
-    Preconditions.checkArgument(value != null, "value must not be null");
     Preconditions.checkArgument(extractionFn != null || dimExtractionFn != null, "extraction function must not be null");
 
     this.dimension = dimension;
diff --git a/processing/src/main/java/io/druid/segment/filter/ExtractionFilter.java b/processing/src/main/java/io/druid/segment/filter/ExtractionFilter.java
index c47a8720a06..252209af1b9 100644
--- a/processing/src/main/java/io/druid/segment/filter/ExtractionFilter.java
+++ b/processing/src/main/java/io/druid/segment/filter/ExtractionFilter.java
@@ -46,7 +46,7 @@ public class ExtractionFilter implements Filter
   public ExtractionFilter(String dimension, String value, ExtractionFn fn)
   {
     this.dimension = dimension;
-    this.value = value;
+    this.value = Strings.nullToEmpty(value);
     this.fn = fn;
   }