1 files changed, 5 insertions, 1 deletions
diff --git a/pom.h b/pom.h
index 4078a1a..f2f7e52 100644
--- a/pom.h
+++ b/pom.h
@@ -108,7 +108,11 @@ typedef struct pom_settings {
 	void (*free)(void *udata, void *ptr);
 	/// Language for error messages.
 	///
-	/// If empty, the default of `"en-US"` will be used.
+	/// Should be an IETF-style language tag.
+	/// Closest-matching implemented language will be used (e.g. `"fr-CA"` will use `"fr"`),
+	/// or else `"en"` if there are no matches.
+	///
+	/// Current supported languages: `en`, `fr`.
 	char error_lang[16];
 	/// Reserved for future use. Must be set to 0.
 	void *reserved[4];