diff --git a/books/bookvol10.4.pamphlet b/books/bookvol10.4.pamphlet
index 77b281b..4d26cc9 100644
--- a/books/bookvol10.4.pamphlet
+++ b/books/bookvol10.4.pamphlet
@@ -138656,9 +138656,9 @@ StreamFunctions3(A,B,C): Exports == Implementation where
 
     map(g,x,y) ==
       explicitlyEmpty? x => empty()
-      eq?(x,rst x) => map(g(frst x,#1),y)$StreamFunctions2(B,C)
+      eq?(x,rst x) => map(z +-> g(frst x,z),y)$StreamFunctions2(B,C)
       explicitlyEmpty? y => empty()
-      eq?(y,rst y) => map(g(#1,frst y),x)$StreamFunctions2(A,C)
+      eq?(y,rst y) => map(z +-> g(z,frst y),x)$StreamFunctions2(A,C)
       mapp(g,x,y)
 
 @
diff --git a/changelog b/changelog
index 1ff7fcd..cc5243e 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,5 @@
+20090621 tpd src/axiom-website/patches.html 20090621.04.tpd.patch
+20090621 tpd books/bookvol10.4 STREAM3 +-> conversion
 20090621 tpd src/axiom-website/patches.html 20090621.03.tpd.patch
 20090621 tpd books/bookvol10.4 SFRGCD +-> conversion
 20090621 tpd src/axiom-website/patches.html 20090621.02.tpd.patch
diff --git a/src/axiom-website/patches.html b/src/axiom-website/patches.html
index ce9ecf3..a24b127 100644
--- a/src/axiom-website/patches.html
+++ b/src/axiom-website/patches.html
@@ -1623,5 +1623,7 @@ bookvol10.4 SMITH +-> conversion<br/>
 bookvol10.4 SFQCMPK +-> conversion<br/>
 <a href="patches/20090621.03.tpd.patch">20090621.03.tpd.patch</a>
 bookvol10.4 SFRGCD +-> conversion<br/>
+<a href="patches/20090621.04.tpd.patch">20090621.04.tpd.patch</a>
+bookvol10.4 STREAM3 +-> conversion<br/>
  </body>
 </html>