diff --git a/lua/telescope/pickers.lua b/lua/telescope/pickers.lua
index 143af11..3c2c2d4 100644
--- a/lua/telescope/pickers.lua
+++ b/lua/telescope/pickers.lua
@@ -1227,7 +1227,7 @@ end
 
 --- Close all open Telescope pickers
 function Picker:close_existing_pickers()
-  for _, prompt_bufnr in ipairs(state.get_existing_prompts()) do
+  for _, prompt_bufnr in ipairs(state.get_existing_prompt_bufnrs()) do
     pcall(actions.close, prompt_bufnr)
   end
 end
diff --git a/lua/telescope/state.lua b/lua/telescope/state.lua
index 6a06eb1..a3e6d85 100644
--- a/lua/telescope/state.lua
+++ b/lua/telescope/state.lua
@@ -24,8 +24,16 @@ function state.clear_status(prompt_bufnr)
   state.set_status(prompt_bufnr, nil)
 end
 
-function state.get_existing_prompts()
-  return vim.tbl_keys(TelescopeGlobalState)
+function state.get_existing_prompt_bufnrs()
+  local prompt_bufnrs = {}
+
+  for key, _ in pairs(TelescopeGlobalState) do
+    if type(key) == "number" then
+      table.insert(prompt_bufnrs, key)
+    end
+  end
+
+  return prompt_bufnrs
 end
 
 return state