diff --git a/configure.ac b/configure.ac
index 4ca7813..508b5a9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,6 @@ AC_CONFIG_HEADERS(config.h)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 AC_PROG_CC
-AM_PROG_CC_STDC
 AC_HEADER_STDC
 AC_C_CONST