diff --git a/configure.ac b/configure.ac
index bf21657..c844ce8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,9 +7,9 @@ AC_INIT([libkernaux],
 
 AC_CONFIG_SRCDIR([src/pfa.c])
 
-AC_CANONICAL_SYSTEM
+AC_CANONICAL_HOST
 
-AM_CONDITIONAL(ARCH_I386, test "${target_cpu}" = "i386")
+AM_CONDITIONAL(ARCH_I386, test "${host_cpu}" = "i386")
 
 AM_INIT_AUTOMAKE([1.9 subdir-objects -Wall -Werror])