diff --git a/src/ncp/ncp_base.cpp b/src/ncp/ncp_base.cpp
index 302277d67..34e6285c7 100644
--- a/src/ncp/ncp_base.cpp
+++ b/src/ncp/ncp_base.cpp
@@ -1780,7 +1780,7 @@ template <> otError NcpBase::HandlePropertyGet<SPINEL_PROP_CAPS>(void)
 
 #if OPENTHREAD_MTD || OPENTHREAD_FTD
 
-    SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_NET_THREAD_1_0));
+    SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_NET_THREAD_1_1));
 #if OPENTHREAD_ENABLE_MAC_FILTER
     SuccessOrExit(error = mEncoder.WriteUintPacked(SPINEL_CAP_MAC_WHITELIST));
 #endif
diff --git a/src/ncp/spinel.c b/src/ncp/spinel.c
index 9ecc4e79a..2a5479b65 100644
--- a/src/ncp/spinel.c
+++ b/src/ncp/spinel.c
@@ -2407,6 +2407,10 @@ const char *spinel_capability_to_cstr(unsigned int capability)
         ret = "NET_THREAD_1_0";
         break;
 
+    case SPINEL_CAP_NET_THREAD_1_1:
+        ret = "NET_THREAD_1_1";
+        break;
+
     case SPINEL_CAP_MAC_WHITELIST:
         ret = "MAC_WHITELIST";
         break;
diff --git a/src/ncp/spinel.h b/src/ncp/spinel.h
index 47ebd5af3..790308941 100644
--- a/src/ncp/spinel.h
+++ b/src/ncp/spinel.h
@@ -464,6 +464,7 @@ enum
 
     SPINEL_CAP_NET__BEGIN     = 52,
     SPINEL_CAP_NET_THREAD_1_0 = (SPINEL_CAP_NET__BEGIN + 0),
+    SPINEL_CAP_NET_THREAD_1_1 = (SPINEL_CAP_NET__BEGIN + 1),
     SPINEL_CAP_NET__END       = 64,
 
     SPINEL_CAP_OPENTHREAD__BEGIN       = 512,