diff --git a/acp_adapter/server.py b/acp_adapter/server.py
index 3dfc710b1a82..cc19f855d9b2 100644
--- a/acp_adapter/server.py
+++ b/acp_adapter/server.py
@@ -2023,7 +2023,7 @@ class HermesACPAgent(acp.Agent):
         if getattr(agent, "compression_enabled", True) is False:
             lines.append(
                 "Auto-compaction is disabled (compression.enabled: false); "
-                "/compact still compresses manually."
+                "/compress still compresses manually."
             )
         else:
             lines.append("Tip: run /compress to compress manually before the threshold.")
@@ -2052,7 +2052,7 @@ class HermesACPAgent(acp.Agent):
         try:
             agent = state.agent
             # No compression_enabled gate: the flag disables *automatic*
-            # compaction only; manual /compact must keep working (matches
+            # compaction only; manual /compress must keep working (matches
             # the CLI /compress and gateway handlers).
             if not hasattr(agent, "_compress_context"):
                 return "Context compression not available for this agent."
diff --git a/tests/acp/test_server.py b/tests/acp/test_server.py
index c2a40d7bf056..1d9157f44fb0 100644
--- a/tests/acp/test_server.py
+++ b/tests/acp/test_server.py
@@ -1761,9 +1761,9 @@ class TestSlashCommands:
         )
         mock_save.assert_called_once_with(state.session_id)
 
-    def test_compact_works_when_auto_compaction_disabled(self, agent, mock_manager):
+    def test_compress_works_when_auto_compaction_disabled(self, agent, mock_manager):
         """compression.enabled: false disables *automatic* compaction only —
-        manual /compact must still compress (matches CLI /compress and the
+        manual /compress must still compress (matches CLI /compress and the
         gateway handler)."""
         state = self._make_state(mock_manager)
         state.history = [
@@ -1787,7 +1787,7 @@ class TestSlashCommands:
                 side_effect=[40, 12],
             ),
         ):
-            result = agent._handle_slash_command("/compact", state)
+            result = agent._handle_slash_command("/compress", state)
 
         assert "disabled" not in result.lower()
         assert "Context compressed: 4 -> 1 messages" in result