diff --git a/configure.ac b/configure.ac
index 9249ae036b7d1..aa79e9d7743ba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,9 +22,6 @@ AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([build-aux/m4])
 AC_CANONICAL_HOST
-AH_TOP([#ifndef LIBSECP256K1_CONFIG_H])
-AH_TOP([#define LIBSECP256K1_CONFIG_H])
-AH_BOTTOM([#endif /*LIBSECP256K1_CONFIG_H*/])
 
 # Require Automake 1.11.2 for AM_PROG_AR
 AM_INIT_AUTOMAKE([1.11.2 foreign subdir-objects])