diff --git a/src/ncp/ncp_base.hpp b/src/ncp/ncp_base.hpp
index 6a641d096..266ffde77 100644
--- a/src/ncp/ncp_base.hpp
+++ b/src/ncp/ncp_base.hpp
@@ -640,7 +640,6 @@ private:
     ChangedPropsSet mChangedPropsSet;
 
     uint32_t mChangedFlags;
-    bool mShouldSignalEndOfScan;
     spinel_host_power_state_t mHostPowerState;
     NcpFrameBuffer::FrameTag mHostPowerReplyFrameTag;
     uint8_t mHostPowerStateHeader;