diff --git a/doc/Makefile.in b/doc/Makefile.in
index 10fc2eb378..14e999875e 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -29,8 +29,8 @@ tests TAGS dep depend:
 
 install-doc:
 	@if test -d $(DOCDIR) ; then                                          \
-           :;                                                                 \
-        else                                                                  \
+       :;                                                                 \
+    else                                                                  \
 	   mkdir $(DOCDIR) && chmod 755 $(DOCDIR);                            \
 	fi
 	@@SETX@; for d in $(SUBDIRS); do                                      \