diff --git a/libcorpus2/io/statwriter.h b/libcorpus2/io/statwriter.h
index 92c2a56c8739d1852093731b076759d94364b0fe..1f671bb277f73e03dbdcf0ec4252734ce7bf6a20 100644
--- a/libcorpus2/io/statwriter.h
+++ b/libcorpus2/io/statwriter.h
@@ -14,7 +14,7 @@ or FITNESS FOR A PARTICULAR PURPOSE.
     See the LICENSE.CORPUS2, LICENSE.POLIQARP, COPYING.LESSER and COPYING files for more details.
 */
 
-#ifndef LIBSORPUS2_IO_STATWRITER_H
+#ifndef LIBCORPUS2_IO_STATWRITER_H
 #define LIBCORPUS2_IO_STATWRITER_H
 
 #include <libcorpus2/io/writer.h>