diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c
index 7b6a6cb98..c29cd5895 100644
--- a/wpa_supplicant/wnm_sta.c
+++ b/wpa_supplicant/wnm_sta.c
@@ -533,8 +533,8 @@ static void wnm_send_bss_transition_mgmt_resp(
 }
 
 
-void wnm_scan_response(struct wpa_supplicant *wpa_s,
-		       struct wpa_scan_results *scan_res)
+static void wnm_scan_response(struct wpa_supplicant *wpa_s,
+			      struct wpa_scan_results *scan_res)
 {
 	u8 bssid[ETH_ALEN];
 
diff --git a/wpa_supplicant/wnm_sta.h b/wpa_supplicant/wnm_sta.h
index 1117c8258..a118b016d 100644
--- a/wpa_supplicant/wnm_sta.h
+++ b/wpa_supplicant/wnm_sta.h
@@ -54,9 +54,6 @@ int ieee802_11_send_wnmsleep_req(struct wpa_supplicant *wpa_s,
 void ieee802_11_rx_wnm_action(struct wpa_supplicant *wpa_s,
 			      const struct ieee80211_mgmt *mgmt, size_t len);
 
-void wnm_scan_response(struct wpa_supplicant *wpa_s,
-		       struct wpa_scan_results *scan_res);
-
 int wnm_send_bss_transition_mgmt_query(struct wpa_supplicant *wpa_s,
 				       u8 query_reason);
 void wnm_deallocate_memory(struct wpa_supplicant *wpa_s);