diff --git a/source/scpi_builtins.c b/source/scpi_builtins.c
index 022d62b..794186f 100644
--- a/source/scpi_builtins.c
+++ b/source/scpi_builtins.c
@@ -362,7 +362,7 @@ const SCPI_command_t scpi_commands_builtin[] = {
 		.callback = builtin_OPC
 	},
 	{
-		.levels = {"*OPCq"},
+		.levels = {"*OPC?"},
 		.callback = builtin_OPCq
 	},
 	{