diff --git a/src/ap/sta_info.c b/src/ap/sta_info.c
index 438cf81..5b8ff91 100644
--- a/src/ap/sta_info.c
+++ b/src/ap/sta_info.c
@@ -359,7 +359,7 @@
 		wpa_printf(MSG_ERROR, "open %s failed", tmpfile);
 		return;
 	}
-	fprintf(f, "wifi3|probe:%s|assoc:%s", sta->probe_ie_taxonomy,
+	fprintf(f, "wifi4|probe:%s|assoc:%s", sta->probe_ie_taxonomy,
 	        sta->assoc_ie_taxonomy);
 	fclose(f);
 	if (rename(tmpfile, filename)) {
diff --git a/src/ap/taxonomy.c b/src/ap/taxonomy.c
index 5e1fd2a..2ec4019 100644
--- a/src/ap/taxonomy.c
+++ b/src/ap/taxonomy.c
@@ -75,7 +75,6 @@
 }
 
 static void ie_to_string(char *fstr, size_t fstr_len,
-                         const char *capability,
                          const u8 *ie, size_t ie_len)
 {
 	size_t flen = fstr_len - 1;
@@ -85,7 +84,6 @@
 	char vhtcap[8 + 8 + 1];  // ",vhtcap:" + %08x + trailing NUL
 	char vhtrxmcs[10 + 8 + 1];  // ",vhtrxmcs:" + %08x + trailing NUL
 	char vhttxmcs[10 + 8 + 1];  // ",vhttxmcs:" + %08x + trailing NUL
-	char intwrk[8 + 2 + 1];  // ",intwrk:" + %02hx + trailing NUL
 	#define MAX_EXTCAP	254
 	char extcap[8 + (2 * MAX_EXTCAP) + 1];  // ",extcap:" + hex + trailing NUL
 	char txpow[7 + 4 + 1];  // ",txpow:" + %04hx + trailing NUL
@@ -99,7 +97,6 @@
 	memset(vhtcap, 0, sizeof(vhtcap));
 	memset(vhtrxmcs, 0, sizeof(vhtrxmcs));
 	memset(vhttxmcs, 0, sizeof(vhttxmcs));
-	memset(intwrk, 0, sizeof(intwrk));
 	memset(extcap, 0, sizeof(extcap));
 	memset(txpow, 0, sizeof(txpow));
 	memset(wps, 0, sizeof(wps));
@@ -176,10 +173,6 @@
 				snprintf(vhttxmcs, sizeof(vhttxmcs), ",vhttxmcs:%08x",
 				         le_to_host32(mcs));
 			}
-			if ((id == 107) && (elen >= 1)) {
-				/* Interworking */
-				snprintf(intwrk, sizeof(intwrk), ",intwrk:%02hx", *ie);
-			}
 			if (id == 127) {
 				/* Extended Capabilities */
 				int i;
@@ -210,10 +203,6 @@
 		ie_len -= elen;
 	}
 
-	if (capability) {
-		strncat(fstr, capability, flen);
-		flen = fstr_len - strlen(fstr) - 1;
-	}
 	if (strlen(htcap)) {
 		strncat(fstr, htcap, flen);
 		flen = fstr_len - strlen(fstr) - 1;
@@ -242,10 +231,6 @@
 		strncat(fstr, txpow, flen);
 		flen = fstr_len - strlen(fstr) - 1;
 	}
-	if (strlen(intwrk)) {
-		strncat(fstr, intwrk, flen);
-		flen = fstr_len - strlen(fstr) - 1;
-	}
 	if (strlen(extcap)) {
 		strncat(fstr, extcap, flen);
 		flen = fstr_len - strlen(fstr) - 1;
@@ -263,17 +248,15 @@
 {
 	ie_to_string(sta->probe_ie_taxonomy,
 	             sizeof(sta->probe_ie_taxonomy),
-	             NULL, ie, ie_len);
+	             ie, ie_len);
 }
 
 void hostapd_taxonomy_assoc_req(struct sta_info *sta,
 	const u8 *ie, size_t ie_len)
 {
-	char cap[5 + 4 + 1];  // ",cap:" + %04x + trailing NUL
-	snprintf(cap, sizeof(cap), ",cap:%04hx", sta->capability);
 	ie_to_string(sta->assoc_ie_taxonomy,
 	             sizeof(sta->assoc_ie_taxonomy),
-	             cap, ie, ie_len);
+	             ie, ie_len);
 }
 
 /* vim: set tabstop=4 softtabstop=4 shiftwidth=4 noexpandtab : */