1 files changed, 8 insertions, 7 deletions
diff --git a/script/core/diagnostics/assign-type-mismatch.lua b/script/core/diagnostics/assign-type-mismatch.lua
index b7d11226..ae4b3512 100644
--- a/script/core/diagnostics/assign-type-mismatch.lua
+++ b/script/core/diagnostics/assign-type-mismatch.lua
@@ -38,13 +38,14 @@ return function (uri, callback)
             end
         end
         local valueNode = vm.compileNode(value)
-        if source.type == 'setindex'
-        or source.type == 'setfield'
-        or source.type == 'tablefield'
-        or source.type == 'tableindex' then
-            if valueNode:hasName 'nil' then
-                valueNode = valueNode:copy():removeOptional()
-                if valueNode:isEmpty() then
+        if  source.type == 'setindex'
+        and vm.isSubType(uri, valueNode, 'nil') then
+            -- boolean[1] = nil
+            local tnode = vm.compileNode(source.node)
+            for n in tnode:eachObject() do
+                if n.type == 'doc.type.array'
+                or n.type == 'doc.type.table'
+                or n.type == 'table' then
                     return
                 end
             end