diff --git a/Makefile.am b/Makefile.am
index 38509e5..d8430da 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -191,6 +191,7 @@ ChangeLog: doc/ChangeLog.OLD
                 | sed 's/^\([A-Z]\)\t/      \1 /'; \
 	        cat $< \
 	    ) > $@; \
+	    echo "Rebuilt $@ from git commit history."; \
 	else \
 	    echo "Not in a git repository; can't update ChangeLog."; \
 	fi