diff --git a/SConstruct b/SConstruct
index 4f63e49c2..cc0fc8064 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1252,12 +1252,11 @@ if not preconfigured:
 
     conf.FindBoost(BOOST_SEARCH_PREFIXES,thread_flag)
 
-    has_boost_devel = False
+    has_boost_devel = True
     if not env['HOST']:
         if not conf.CheckHeader(header='boost/version.hpp',language='C++'):
             env['MISSING_DEPS'].append('boost development headers')
-        else:
-            has_boost_devel = True
+            has_boost_devel = False
 
     if has_boost_devel:
         env['BOOST_LIB_VERSION_FROM_HEADER'] = conf.GetBoostLibVersion()