diff --git a/configure.ac b/configure.ac
index 0709117..a37b980 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ m4_include([m4/memopt.m4])
 AC_MEM_OPT
 
 m4_include([m4/chkamd.m4])
-AC_CHK_AM
+AC_CHK_AMD
 
 # Checks for programs.
 AC_PROG_CXX