diff --git a/src/configure.in b/src/configure.in
index 0c15ce7fa177c0f4e47988cc3262b1f09ce56a93..3323ef632c69b69a3247657d89c8f271c8399fc3 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -108,6 +108,8 @@ fi
 
 LIBOBJS="${OLD_LIBOBJS}"
 
+AC_CHECK_LIB(crypt, crypt)
+
 AC_HAVE_FUNCS(memset memcpy memchr strchr strrchr fchmod getrusage \
  strcspn crypt _crypt getwd getcwd strtod strtok getenv vfprintf bzero bcopy \
  strtol index rindex vsprintf clock times setlocale strcoll getrlimit \