diff --git a/configure.ac b/configure.ac
index 4777863..cfad142 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,6 @@ AM_INIT_AUTOMAKE(1.6)
 AC_CONFIG_HEADERS(config.h)
 
 AC_PROG_CC
-AM_PROG_CC_STDC
 AC_HEADER_STDC
 AC_C_CONST