diff --git a/main/src/com/google/refine/importers/SeparatorBasedImporter.java b/main/src/com/google/refine/importers/SeparatorBasedImporter.java
index 40c6614e9..75bf64b0d 100644
--- a/main/src/com/google/refine/importers/SeparatorBasedImporter.java
+++ b/main/src/com/google/refine/importers/SeparatorBasedImporter.java
@@ -50,6 +50,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.lang3.StringEscapeUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import org.json.JSONObject;