--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -12,7 +12,8 @@
 full-write.c human.c idcache.c \
 isdir.c long-options.c makepath.c modechange.c hash.c path-concat.c \
 quotearg.c safe-read.c save-cwd.c savedir.c stripslash.c userspec.c \
-version-etc.c xgetcwd.c xmalloc.c xstrdup.c xstrtol.c xstrtoul.c yesno.c
+version-etc.c xgetcwd.c xmalloc.c xstrdup.c \
+xstrtol.c xstrtoul.c xstrtoumax.c yesno.c
 
 libfu_a_LIBADD = @LIBOBJS@ @ALLOCA@
 libfu_a_DEPENDENCIES = $(libfu_a_LIBADD)
@@ -22,7 +23,7 @@
 getdate.h getline.h getopt.h group-member.h human.h lchown.h long-options.h \
 makepath.h modechange.h mountlist.h hash.h path-concat.h pathmax.h \
 posixtm.h quotearg.h regex.h safe-read.h save-cwd.h savedir.h strverscmp.h \
-version-etc.h xalloc.h xstrtol.h xstrtoul.h
+version-etc.h xalloc.h xstrtol.h
 
 BUILT_SOURCES = getdate.c lstat.c stat.c