diff --git a/src/main/resources/mappers/estimate/estimateMapper.xml b/src/main/resources/mappers/estimate/estimateMapper.xml
index d22cbddd..74862c0b 100644
--- a/src/main/resources/mappers/estimate/estimateMapper.xml
+++ b/src/main/resources/mappers/estimate/estimateMapper.xml
@@ -524,7 +524,7 @@
                   AND ROOF_MATL_CD = RE.ROOF_MATERIAL_ID
             ) NUMBERED
             WHERE NUMBERED.SEQ_RN = CASE
-                WHEN RE.RE_RN <![CDATA[<=]> NUMBERED.TOTAL_CNT THEN RE.RE_RN
+                WHEN RE.RE_RN <![CDATA[<=]]> NUMBERED.TOTAL_CNT THEN RE.RE_RN
                 ELSE 1
             END
         ) CR