diff --git a/CHANGES b/CHANGES
index b7e238ebb3..2678218041 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,5 @@
 
+    * Compare commands case-insensitively in the asyncio command parser
     * Allow negative `retries` for `Retry` class to retry forever
     * Add `items` parameter to `hset` signature
     * Create codeql-analysis.yml (#1988). Thanks @chayim
diff --git a/redis/asyncio/parser.py b/redis/asyncio/parser.py
index 9518c3f1a5..5faf8f8c57 100644
--- a/redis/asyncio/parser.py
+++ b/redis/asyncio/parser.py
@@ -55,14 +55,14 @@ async def get_keys(self, *args: Any) -> Optional[Tuple[str, ...]]:
             # try to split the command name and to take only the main command
             # e.g. 'memory' for 'memory usage'
             args = args[0].split() + list(args[1:])
-            cmd_name = args[0]
+            cmd_name = args[0].upper()
             if cmd_name not in self.commands:
                 # We'll try to reinitialize the commands cache, if the engine
                 # version has changed, the commands may not be current
                 await self.initialize()
                 if cmd_name not in self.commands:
                     raise RedisError(
-                        f"{cmd_name.upper()} command doesn't exist in Redis commands"
+                        f"{cmd_name} command doesn't exist in Redis commands"
                     )
 
             command = self.commands[cmd_name]