diff --git a/src/Curl/Curl.jl b/src/Curl/Curl.jl
index 3fc9310..ebd402d 100644
--- a/src/Curl/Curl.jl
+++ b/src/Curl/Curl.jl
@@ -67,6 +67,7 @@ include("utils.jl")
 
 function __init__()
     @check curl_global_init(CURL_GLOBAL_ALL)
+    Base.atexit(atexit_close_multis)
 end
 
 const CURL_VERSION_INFO = unsafe_load(curl_version_info(CURLVERSION_NOW))
diff --git a/src/Curl/Multi.jl b/src/Curl/Multi.jl
index c6ed079..67d9798 100644
--- a/src/Curl/Multi.jl
+++ b/src/Curl/Multi.jl
@@ -56,7 +56,7 @@ end
 const MULTIS_LOCK = Base.ReentrantLock()
 const MULTIS = WeakRef[]
 # Close any Multis and their timers at exit that haven't been finalized by then
-Base.atexit() do
+function atexit_close_multis()
     while true
         w = @lock MULTIS_LOCK (isempty(MULTIS) ? nothing : pop!(MULTIS))
         w === nothing && break