diff --git a/gpgme/ChangeLog b/gpgme/ChangeLog
index 8ca7718b..9950a552 100644
--- a/gpgme/ChangeLog
+++ b/gpgme/ChangeLog
@@ -1,5 +1,7 @@
 2003-09-14  Marcus Brinkmann  <marcus@g10code.de>
 
+	* gpgme.h: Add prototype for gpgme_set_locale.
+
 	* gpgme.h: Define macro _GPGME_INLINE depending on the compiler
 	characteristics and use that instead __inline__.
 
diff --git a/gpgme/gpgme.h b/gpgme/gpgme.h
index 7ebb61b5..df9a8e7b 100644
--- a/gpgme/gpgme.h
+++ b/gpgme/gpgme.h
@@ -719,6 +719,10 @@ void gpgme_set_progress_cb (gpgme_ctx_t c, gpgme_progress_cb_t cb,
 void gpgme_get_progress_cb (gpgme_ctx_t ctx, gpgme_progress_cb_t *cb,
 			    void **hook_value);
 
+/* This function sets the locale for the context CTX, or the default
+   locale if CTX is a null pointer.  */
+gpgme_error_t gpgme_set_locale (gpgme_ctx_t ctx, int category,
+				const char *value);
 
 /* Return a statically allocated string with the name of the public
    key algorithm ALGO, or NULL if that name is not known.  */