diff --git a/.gitignore b/.gitignore
index 0704720..009ccf9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,7 +18,6 @@ bench
 bench-ingest
 bench-ingest-many
 configurator
-config.h
 libsecp256k1.a
 .direnv/
 deps/secp256k1
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..d16dda9
--- /dev/null
+++ b/config.h
@@ -0,0 +1,18 @@
+/* Generated by CCAN configurator */
+#ifndef CCAN_CONFIG_H
+#define CCAN_CONFIG_H
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE /* Always use GNU extensions. */
+#endif
+#define CCAN_COMPILER "cc"
+#define CCAN_CFLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
+#define CCAN_OUTPUT_EXE_CFLAG "-o"
+
+#define HAVE_CCAN 1
+#define HAVE_UNALIGNED_ACCESS 1
+#define HAVE_TYPEOF 1
+#define HAVE_BIG_ENDIAN 0
+#define HAVE_BYTESWAP_H 1
+#define HAVE_BSWAP_64 1
+#define HAVE_LITTLE_ENDIAN 1
+#endif /* CCAN_CONFIG_H */