diff --git a/src/java/org/apache/poi/hssf/usermodel/HSSFCellStyle.java b/src/java/org/apache/poi/hssf/usermodel/HSSFCellStyle.java
index 73e4c0072..0b3db6d8e 100644
--- a/src/java/org/apache/poi/hssf/usermodel/HSSFCellStyle.java
+++ b/src/java/org/apache/poi/hssf/usermodel/HSSFCellStyle.java
@@ -74,7 +74,6 @@ import org.apache.poi.hssf.record.ExtendedFormatRecord;
  */
 
 public class HSSFCellStyle
-    implements HSSFColorConstants
 {
     private ExtendedFormatRecord format                     = null;
     private short                index                      = 0;
diff --git a/src/java/org/apache/poi/hssf/usermodel/HSSFFont.java b/src/java/org/apache/poi/hssf/usermodel/HSSFFont.java
index 0800452dc..ffffd2aa7 100644
--- a/src/java/org/apache/poi/hssf/usermodel/HSSFFont.java
+++ b/src/java/org/apache/poi/hssf/usermodel/HSSFFont.java
@@ -73,7 +73,6 @@ import org.apache.poi.hssf.record.FontRecord;
  */
 
 public class HSSFFont
-    implements HSSFColorConstants
 {
 
     /**