diff --git a/include/osmocom/gsm/gsm0808_utils.h b/include/osmocom/gsm/gsm0808_utils.h
index 6555734..242bce9 100644
--- a/include/osmocom/gsm/gsm0808_utils.h
+++ b/include/osmocom/gsm/gsm0808_utils.h
@@ -147,7 +147,7 @@
 	case GSM48_CMODE_SPEECH_AMR:
 		switch (type) {
 		case GSM_LCHAN_TCH_F:
-			return GSM0808_PERM_HR3;
+			return GSM0808_PERM_FR3;
 		case GSM_LCHAN_TCH_H:
 			return GSM0808_PERM_HR3;
 		default: