diff --git a/compiler/one-cmds/one-codegen b/compiler/one-cmds/one-codegen
index 677962341fe..f7a7d70b09a 100644
--- a/compiler/one-cmds/one-codegen
+++ b/compiler/one-cmds/one-codegen
@@ -37,7 +37,7 @@ sys.tracebacklimit = 0
 
 
 def _get_parser(backends_list):
-    codegen_usage = 'one-codegen [-h] [-v] [-C CONFIG] [-b BACKEND] [-T TARGET] [--] [COMMANDS FOR BACKEND]'
+    codegen_usage = 'one-codegen [-h] [-v] [-C CONFIG] [-b BACKEND | -T TARGET] [--] [COMMANDS FOR BACKEND]'
     parser = argparse.ArgumentParser(
         description='command line tool for code generation', usage=codegen_usage)
 
diff --git a/compiler/one-cmds/one-profile b/compiler/one-cmds/one-profile
index 85517b56e38..418b68b4732 100644
--- a/compiler/one-cmds/one-profile
+++ b/compiler/one-cmds/one-profile
@@ -76,7 +76,7 @@ def _get_backends_list():
 
 
 def _get_parser(backends_list):
-    profile_usage = 'one-profile [-h] [-v] [-C CONFIG] [-b BACKEND] [-T TARGET] [--] [COMMANDS FOR BACKEND]'
+    profile_usage = 'one-profile [-h] [-v] [-C CONFIG] [-b BACKEND | -T TARGET] [--] [COMMANDS FOR BACKEND]'
     parser = argparse.ArgumentParser(
         description='command line tool for profiling backend model', usage=profile_usage)
 
diff --git a/compiler/one-cmds/onecc b/compiler/one-cmds/onecc
index 938aff3fb5c..dbbd4d0f680 100644
--- a/compiler/one-cmds/onecc
+++ b/compiler/one-cmds/onecc
@@ -57,7 +57,7 @@ def run_subtools():
 
 
 def get_parser():
-    onecc_usage = 'onecc [-h] [-v] [-C CONFIG] [-b BACKEND] [-W WORKFLOW] [-O OPTIMIZATION] [-T TARGET] [COMMAND <args>]'
+    onecc_usage = 'onecc [-h] [-v] [-C CONFIG | -W WORKFLOW] [-b BACKEND | -T TARGET] [-O OPTIMIZATION] [COMMAND <args>]'
     onecc_desc = 'Run ONE driver via several commands or configuration file'
     parser = ArgumentParser(description=onecc_desc, usage=onecc_usage)