diff --git a/coreapi/linphonecore.h b/coreapi/linphonecore.h
index 7bb466ad6..f61dffe7d 100644
--- a/coreapi/linphonecore.h
+++ b/coreapi/linphonecore.h
@@ -538,7 +538,7 @@ LINPHONE_PUBLIC	void linphone_proxy_config_enable_publish(LinphoneProxyConfig *o
 LINPHONE_PUBLIC	void linphone_proxy_config_set_dial_escape_plus(LinphoneProxyConfig *cfg, bool_t val);
 LINPHONE_PUBLIC	void linphone_proxy_config_set_dial_prefix(LinphoneProxyConfig *cfg, const char *prefix);
 
-LinphoneRegistrationState linphone_proxy_config_get_state(const LinphoneProxyConfig *obj);
+LINPHONE_PUBLIC	LinphoneRegistrationState linphone_proxy_config_get_state(const LinphoneProxyConfig *obj);
 LINPHONE_PUBLIC	bool_t linphone_proxy_config_is_registered(const LinphoneProxyConfig *obj);
 LINPHONE_PUBLIC	const char *linphone_proxy_config_get_domain(const LinphoneProxyConfig *cfg);