diff --git a/proposal/sandbox/filterreaders/src/main/org/apache/tools/ant/filters/ClassConstants.java b/proposal/sandbox/filterreaders/src/main/org/apache/tools/ant/filters/ClassConstants.java
index a1446bfae..3764d415d 100644
--- a/proposal/sandbox/filterreaders/src/main/org/apache/tools/ant/filters/ClassConstants.java
+++ b/proposal/sandbox/filterreaders/src/main/org/apache/tools/ant/filters/ClassConstants.java
@@ -63,7 +63,7 @@ import org.apache.bcel.*;
 import org.apache.bcel.classfile.*;
 
 /**
- * Assemble the constants declared in a file in
+ * Assemble the constants declared in a Java class in
  * key1=value1(line separator)key2=value2
  * format
  *