diff --git a/books/bookvol7.1.pamphlet b/books/bookvol7.1.pamphlet
index a629a3c..09a7929 100644
--- a/books/bookvol7.1.pamphlet
+++ b/books/bookvol7.1.pamphlet
@@ -188310,7 +188310,7 @@ ${HYPER}/ht.db: ${BOOK}
 	@ cp -pr ${IN}/bitmaps ${HYPER}
 	@ cp -pr ${IN}/viewports ${HYPER}
 	@ (cd ${HYPER}/viewports ; \
-            for i in `find . -name "*.Z"` ; do $${UNCOMPRESS} $$i ; done )
+            for i in `find . -name "*.Z"` ; do gunzip $$i ; done )
 
 @
 \eject
diff --git a/changelog b/changelog
index 5a3a67b..7603cef 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,4 @@
+20080817 tpd books/bookvol7.1 fix uncompress
 20080816 tpd src/input/Makefile add regression tests
 20080816 tpd src/input/test.input create regression
 20080816 tpd src/input/regset.input create regression