diff --git a/ChangeLog b/ChangeLog
index 2117753..2fe81cf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-01-03  Bruno Haible  <bruno@clisp.org>
+
+	Fix installation in 64-bit mode on AIX.
+	* lib/Makefile.in (AR): New variable.
+	(install): Use it instead of hardcoding 'ar'.
+
 2017-11-26  Bruno Haible  <bruno@clisp.org>
 
 	Avoid end-of-lines problem in generated shell scripts on Cygwin.
diff --git a/lib/Makefile.in b/lib/Makefile.in
index 9871a3c..d328290 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -30,6 +30,7 @@
 LIBTOOL_LINK = $(LIBTOOL) --mode=link
 LIBTOOL_INSTALL = $(LIBTOOL) --mode=install
 LIBTOOL_UNINSTALL = $(LIBTOOL) --mode=uninstall
+AR = @AR@
 # Windows resource compiler (windres). Used via libtool.
 RC = @RC@
 CP = cp
@@ -106,9 +107,9 @@
 	$(LIBTOOL_INSTALL) $(INSTALL) libiconv.la $(DESTDIR)$(libdir)/libiconv.la
 	case "@host_os@" in \
 	  aix*) (cd $(DESTDIR)$(libdir) && \
-	         objects=`ar t libiconv.a`" "`ar t /lib/libiconv.a` && \
-	         ar x libiconv.a && ar x /lib/libiconv.a && \
-	         ar q libiconv.new.a $$objects && \
+	         objects=`$(AR) t libiconv.a`" "`$(AR) t /lib/libiconv.a` && \
+	         $(AR) x libiconv.a && $(AR) x /lib/libiconv.a && \
+	         $(AR) q libiconv.new.a $$objects && \
 	         rm -f $$objects && \
 	         mv -f libiconv.new.a libiconv.a) ;; \
 	esac