diff --git a/lua/blink/cmp/sources/lib/utils.lua b/lua/blink/cmp/sources/lib/utils.lua
index acbd28dc..d3ae4796 100644
--- a/lua/blink/cmp/sources/lib/utils.lua
+++ b/lua/blink/cmp/sources/lib/utils.lua
@@ -60,4 +60,15 @@ function utils.concat_responses(responses)
   }
 end
 
+--- @param item blink.cmp.CompletionItem
+--- @return lsp.CompletionItem
+function utils.blink_item_to_lsp_item(item)
+  local lsp_item = vim.deepcopy(item)
+  lsp_item.cursor_column = nil
+  lsp_item.score_offset = nil
+  lsp_item.client_id = nil
+  lsp_item.source = nil
+  return lsp_item
+end
+
 return utils
diff --git a/lua/blink/cmp/sources/lsp.lua b/lua/blink/cmp/sources/lsp.lua
index 7e75c39d..a358d3bf 100644
--- a/lua/blink/cmp/sources/lsp.lua
+++ b/lua/blink/cmp/sources/lsp.lua
@@ -152,6 +152,9 @@ function lsp:resolve(item, callback)
     return
   end
 
+  -- strip blink specific fields to avoid decoding errors on some LSPs (i.e. fsautocomplete)
+  item = require('blink.cmp.sources.lib.utils').blink_item_to_lsp_item(item)
+
   local _, request_id = client.request('completionItem/resolve', item, function(error, resolved_item)
     if error or resolved_item == nil then callback(item) end
     callback(resolved_item)