diff --git a/src/main/java/org/apache/commons/fileupload/MultipartStream.java b/src/main/java/org/apache/commons/fileupload/MultipartStream.java
index 64b77ca9de..5ced338d57 100644
--- a/src/main/java/org/apache/commons/fileupload/MultipartStream.java
+++ b/src/main/java/org/apache/commons/fileupload/MultipartStream.java
@@ -47,8 +47,8 @@
  *   body := header-part CRLF body-part<br>
  *   header-part := 1*header CRLF<br>
  *   header := header-name ":" header-value<br>
- *   header-name := &lt;printable ascii characters except ":"&gt;<br>
- *   header-value := &lt;any ascii characters except CR &amp; LF&gt;<br>
+ *   header-name := &lt;printable ASCII characters except ":"&gt;<br>
+ *   header-value := &lt;any ASCII characters except CR &amp; LF&gt;<br>
  *   body-data := &lt;arbitrary data&gt;<br>
  * </code>
  *
diff --git a/src/main/java/org/apache/commons/fileupload/util/mime/QuotedPrintableDecoder.java b/src/main/java/org/apache/commons/fileupload/util/mime/QuotedPrintableDecoder.java
index 68381b4801..e2c9ba35a9 100644
--- a/src/main/java/org/apache/commons/fileupload/util/mime/QuotedPrintableDecoder.java
+++ b/src/main/java/org/apache/commons/fileupload/util/mime/QuotedPrintableDecoder.java
@@ -26,7 +26,7 @@ final class QuotedPrintableDecoder {
 
     /**
      * The shift value required to create the upper nibble
-     * from the first of 2 byte values converted from ascii hex.
+     * from the first of 2 byte values converted from ASCII hex.
      */
     private static final int UPPER_NIBBLE_SHIFT = Byte.SIZE / 2;
 
@@ -88,7 +88,7 @@ public static int decode(final byte[] data, final OutputStream out) throws IOExc
     /**
      * Convert a hex digit to the binary value it represents.
      *
-     * @param b the ascii hex byte to convert (0-0, A-F, a-f)
+     * @param b the ASCII hex byte to convert (0-0, A-F, a-f)
      * @return the int value of the hex byte, 0-15
      * @throws IOException if the byte is not a valid hex digit.
      */