diff --git a/src/common/tuklib_config.h b/src/common/tuklib_config.h
index 8f2e9618..9d470ba7 100644
--- a/src/common/tuklib_config.h
+++ b/src/common/tuklib_config.h
@@ -1,7 +1,10 @@
-#include "sysdefs.h"
-
-// sysdefs.h takes care of these.
-// #include <stddef.h>
-// #include <stdbool.h>
-// #include <inttypes.h>
-// #include <limits.h>
+// If config.h isn't available, assume that the headers required by
+// tuklib_common.h are available. This is required by crc32_tablegen.c.
+#ifdef HAVE_CONFIG_H
+#	include "sysdefs.h"
+#else
+#	include <stddef.h>
+#	include <stdbool.h>
+#	include <inttypes.h>
+#	include <limits.h>
+#endif