diff --git a/src/main/java/io/github/millij/poi/ss/handler/RowContentsHandler.java b/src/main/java/io/github/millij/poi/ss/handler/RowContentsHandler.java
index 3024ebc..47b0db2 100644
--- a/src/main/java/io/github/millij/poi/ss/handler/RowContentsHandler.java
+++ b/src/main/java/io/github/millij/poi/ss/handler/RowContentsHandler.java
@@ -96,7 +96,7 @@ private Map<String, String> prepareHeaderMap(int rowNo, Map<String, Object> rowD
 
         final Map<String, String> headerMap = new HashMap<String, String>();
         for (String collRef : rowDataMap.keySet()) {
-            String colName = String.valueOf(rowDataMap.get(collRef));
+            String colName = String.valueOf(rowDataMap.get(collRef)).trim();
             String propName = colToBeanPropMap.get(colName);
             if (StringUtils.isNotEmpty(propName)) {
                 headerMap.put(collRef, String.valueOf(propName));