diff --git a/ilsp/bicep_lsp/proxy.py b/ilsp/bicep_lsp/proxy.py
index 258b339..ec2fa64 100644
--- a/ilsp/bicep_lsp/proxy.py
+++ b/ilsp/bicep_lsp/proxy.py
@@ -201,25 +201,25 @@ def _inject_completions(msg: dict[str, Any], context: dict | None = None) -> byt
         # Default: module name completions
         lru_items = BicepModuleCatalog.as_completion_items()
 
-    if lru_items:
-        if ctx_type in ("version", "param", "param_value"):
-            # Replace LS completions entirely — the Bicep LS doesn't know about
-            # the private registry, so its suggestions here are noise/random.
-            if isinstance(result, list):
-                msg["result"] = lru_items
-            else:
-                result["items"] = lru_items
-                result["isIncomplete"] = False
+    if ctx_type in ("version", "param", "param_value"):
+        # Always replace LS completions for private-registry contexts — the
+        # Bicep LS doesn't know about our ACR, so anything it returns is noise.
+        # Even if lru_items is empty (no enum values for a param), suppress LS.
+        if isinstance(result, list):
+            msg["result"] = lru_items
         else:
-            # module_path / unknown: keep LS completions below ours
-            for item in items:
-                st = item.get("sortText", item.get("label", ""))
-                item["sortText"] = f"1_az_{st}"
-            if isinstance(result, list):
-                msg["result"] = lru_items + items
-            else:
-                result["items"] = lru_items + items
-                result["isIncomplete"] = True
+            result["items"] = lru_items
+            result["isIncomplete"] = False
+    elif lru_items:
+        # module_path / unknown: keep LS completions below ours
+        for item in items:
+            st = item.get("sortText", item.get("label", ""))
+            item["sortText"] = f"1_az_{st}"
+        if isinstance(result, list):
+            msg["result"] = lru_items + items
+        else:
+            result["items"] = lru_items + items
+            result["isIncomplete"] = True
 
     return json.dumps(msg).encode()