diff --git a/configure.ac b/configure.ac
index 2571c5d..c913368 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,6 +3,7 @@
 
 AC_PREREQ([2.69])
 AC_INIT([powertop], [2.14], [powertop@lists.01.org], [], [https://01.org/powertop])
+AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE([
 	-Wall
 	1.12.2
@@ -37,6 +38,7 @@ AC_PROG_CC
 AC_PROG_INSTALL
 AM_PROG_CC_C_O
 PKG_PROG_PKG_CONFIG
+AX_PTHREAD
 
 # Checks for libraries.