diff --git a/hawk/lib/hawk.h b/hawk/lib/hawk.h
index 0dd42fe3..abadb58c 100644
--- a/hawk/lib/hawk.h
+++ b/hawk/lib/hawk.h
@@ -1341,17 +1341,6 @@ typedef enum hawk_trait_t hawk_trait_t;
 
 /* ------------------------------------------------------------------------ */
 
-/**
- * The hawk_errstr_t type defines an error string getter. It should return 
- * an error formatting string for an error number requested. A new string
- * should contain the same number of positional parameters (${X}) as in the
- * default error formatting string. You can set a new getter into an hawk
- * object with the hawk_seterrstr() function to customize an error string.
- */
-typedef const hawk_ooch_t* (*hawk_errstr_t) (
-	hawk_errnum_t num    /**< error number */
-);
-
 /**
  * The hawk_gbl_id_t type defines intrinsic globals variable IDs.
  */