diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py
index ad31f5d..f486b67 100644
--- a/Lib/asyncio/tasks.py
+++ b/Lib/asyncio/tasks.py
@@ -400,13 +400,15 @@
                       "and scheduled for removal in Python 3.10.",
                       DeprecationWarning, stacklevel=2)
 
-    if any(coroutines.iscoroutine(f) for f in set(fs)):
+    fs = set(fs)
+
+    if any(coroutines.iscoroutine(f) for f in fs):
         warnings.warn("The explicit passing of coroutine objects to "
                       "asyncio.wait() is deprecated since Python 3.8, and "
                       "scheduled for removal in Python 3.11.",
                       DeprecationWarning, stacklevel=2)
 
-    fs = {ensure_future(f, loop=loop) for f in set(fs)}
+    fs = {ensure_future(f, loop=loop) for f in fs}
 
     return await _wait(fs, timeout, return_when, loop)