diff --git a/configure.in b/configure.in
index 6302ce8..3a1ef44 100644
--- a/configure.in
+++ b/configure.in
@@ -15,6 +15,8 @@ AC_PROG_MAKE_SET
 # Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS([limits.h malloc.h stddef.h stdlib.h strings.h unistd.h])
+AC_CHECK_HEADER([argtable2.h], [], AC_MSG_ERROR([Could not find argtable2.h required header file]))
+
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_FUNC_REALLOC