diff --git a/src/ncp/spinel.c b/src/ncp/spinel.c
index f8baa674d..90b1508a5 100644
--- a/src/ncp/spinel.c
+++ b/src/ncp/spinel.c
@@ -1216,6 +1216,10 @@ spinel_prop_key_to_cstr(spinel_prop_key_t prop_key)
         ret = "PROP_JAM_DETECT_WINDOW";
         break;
 
+    case SPINEL_PROP_JAM_DETECT_HISTORY_BITMAP:
+        ret = "SPINEL_PROP_JAM_DETECT_HISTORY_BITMAP";
+        break;
+
     case SPINEL_PROP_GPIO_CONFIG:
         ret = "PROP_GPIO_CONFIG";
         break;
@@ -1239,6 +1243,35 @@ spinel_prop_key_to_cstr(spinel_prop_key_t prop_key)
     return ret;
 }
 
+const char *spinel_net_role_to_cstr(uint8_t net_role)
+{
+    const char *ret = "NET_ROLE_UNKNONW";
+
+    switch (net_role)
+    {
+    case SPINEL_NET_ROLE_DETACHED:
+        ret = "NET_ROLE_DETACHED";
+        break;
+
+    case SPINEL_NET_ROLE_CHILD:
+        ret = "NET_ROLE_CHILD";
+        break;
+
+    case SPINEL_NET_ROLE_ROUTER:
+        ret = "NET_ROLE_ROUTER";
+        break;
+
+    case SPINEL_NET_ROLE_LEADER:
+        ret = "NET_ROLE_LEADER";
+        break;
+
+    default:
+        break;
+    }
+
+    return ret;
+}
+
 const char *spinel_status_to_cstr(spinel_status_t status)
 {
     const char *ret = "UNKNOWN";
diff --git a/src/ncp/spinel.h b/src/ncp/spinel.h
index 0fb327569..019b83361 100644
--- a/src/ncp/spinel.h
+++ b/src/ncp/spinel.h
@@ -1144,6 +1144,8 @@ SPINEL_API_EXTERN const char *spinel_next_packed_datatype(const char *pack_forma
 
 SPINEL_API_EXTERN const char *spinel_prop_key_to_cstr(spinel_prop_key_t prop_key);
 
+SPINEL_API_EXTERN const char *spinel_net_role_to_cstr(uint8_t net_role);
+
 SPINEL_API_EXTERN const char *spinel_status_to_cstr(spinel_status_t status);
 
 // ----------------------------------------------------------------------------