diff --git a/src/include/libpq/libpq-be.h b/src/include/libpq/libpq-be.h
index ecdfbc60bb5..b91eca5b2c1 100644
--- a/src/include/libpq/libpq-be.h
+++ b/src/include/libpq/libpq-be.h
@@ -1,6 +1,6 @@
 /*-------------------------------------------------------------------------
  *
- * libpq_be.h
+ * libpq-be.h
  *	  This file contains definitions for structures and externs used
  *	  by the postmaster during client authentication.
  *