diff --git a/cmake/nuttx_mkversion.cmake b/cmake/nuttx_mkversion.cmake
index c7176fb3c1a..f882fdcc3da 100644
--- a/cmake/nuttx_mkversion.cmake
+++ b/cmake/nuttx_mkversion.cmake
@@ -38,6 +38,7 @@ if(${VERSION_STATUS} AND NOT ${VERSION_STATUS} EQUAL 0)
 else()
   string(REPLACE "-" ";" NUTTX_VERSION ${NUTTX_VERSION})
   list(GET NUTTX_VERSION 1 NUTTX_VERSION)
+  string(STRIP "${NUTTX_VERSION}" NUTTX_VERSION)
 endif()
 
 string(REPLACE "." ";" NUTTX_CHECK_VERSION ${NUTTX_VERSION})