diff --git a/Makefile.am b/Makefile.am
index 88e55af..e053902 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -66,12 +66,9 @@ MAINTAINERCLEANFILES += ChangeLog
 
 EXTRA_DIST += ChangeLog
 
-ChangeLog: $(srcdir)/ChangeLog
-
-$(srcdir)/ChangeLog:
-	@if test -d "$(srcdir)/.git"; then \
-	  (cd "$(srcdir)" && \
-	  ./missing --run git-log --stat) | fmt --split-only > $@.tmp \
+ChangeLog:
+	if test -d "$(srcdir)/.git"; then \
+	  (GIT_DIR=$(top_srcdir)/.git ./missing --run git-log --stat) | fmt --split-only > $@.tmp \
 	  && mv -f $@.tmp $@ \
 	  || ($(RM) $@.tmp; \
 	      echo Failed to generate ChangeLog, your ChangeLog may be outdated >&2; \
@@ -82,7 +79,7 @@ $(srcdir)/ChangeLog:
 	  echo A git checkout and git-log is required to generate this file >> $@); \
 	fi
 
-.PHONY: ChangeLog $(srcdir)/ChangeLog
+.PHONY: ChangeLog
 
 install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(configdir) $(DESTDIR)$(fc_cachedir)