diff --git a/plugins/devel/check-structures-sanity.cpp b/plugins/devel/check-structures-sanity.cpp
index f44004150..f21fed278 100644
--- a/plugins/devel/check-structures-sanity.cpp
+++ b/plugins/devel/check-structures-sanity.cpp
@@ -670,7 +670,7 @@ void Checker::check_bitfield(const ToCheck & item)
         if (bits[i].name)
             continue;
 
-        if (!(val & (1 << i)))
+        if (!(val & (1ULL << i)))
             continue;
 
         if (bits[i].size)