diff --git a/autogen.sh b/autogen.sh
index da6bfe1ed..c38fa8dc1 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -87,7 +87,7 @@ aclocal $ACLOCAL_FLAGS || {
   exit 1
 }
 
-if grep "^AM_CONFIG_HEADER" configure.ac >/dev/null; then
+if grep "^AC_CONFIG_HEADERS" configure.ac >/dev/null; then
   echo "Running autoheader..."
   autoheader || { echo "**Error**: autoheader failed."; exit 1; }
 fi