diff --git a/src/dat/nbt.h b/src/dat/nbt.h
index 4dfeacb..967c3eb 100644
--- a/src/dat/nbt.h
+++ b/src/dat/nbt.h
@@ -52,7 +52,7 @@ struct nbt_procdat {
 
 /* searches for the end of a named tag without processing data, the final pointer is returned.
  * `NULL` is returned upon failure, the otherwise returned pointer is not guaranteed to be valid. */
-PURE NONNULL((1)) const u8 *nbt_nexttag(const u8 *restrict buf);
+const u8 *nbt_nexttag(const u8 *restrict buf) NONNULL((1)) PURE;
 
 /* initialises a data structure used whilst processing the tags */
-PURE NONNULL((1)) struct nbt_procdat nbt_initproc(struct nbt_path const *restrict pats, uint npats);
+struct nbt_procdat nbt_initproc(struct nbt_path const *restrict pats, uint npats) NONNULL((1)) PURE;
diff --git a/src/util/conf.h b/src/util/conf.h
index 8b2d51f..e7b49d3 100644
--- a/src/util/conf.h
+++ b/src/util/conf.h
@@ -67,4 +67,4 @@ int conf_procval(struct conf_entry const *opts, const char *restrict val);
  * - windows: reads %APPDATA%, if empty %USERPROFILE%\AppData\Roaming is used, if both are empty NULL is returned.
  * - osx:     reads $HOME, uses $HOME/Library/Application Support, if $HOME is empty NULL is returned.
  * !! A malloc'd null-terminated string is returned !! */
-MALLOC NONNULL((1)) char *conf_getpat(const char *);
+char *conf_getpat(const char *) MALLOC NONNULL((1));