diff --git a/libblkid/crc32.h b/libblkid/crc32.h
new file mode 100644
index 0000000..b454be9
--- /dev/null
+++ b/libblkid/crc32.h
@@ -0,0 +1,9 @@
+#ifndef UL_NG_CRC32_H
+#define UL_NG_CRC32_H
+
+#include <stdint.h>
+
+extern uint32_t crc32(uint32_t seed, const unsigned char *buf, size_t len);
+
+#endif
+