diff --git a/lldb/tools/lldb-vscode/lldb-vscode.cpp b/lldb/tools/lldb-vscode/lldb-vscode.cpp
--- a/lldb/tools/lldb-vscode/lldb-vscode.cpp
+++ b/lldb/tools/lldb-vscode/lldb-vscode.cpp
@@ -947,6 +947,7 @@
     0, -1, matches, descriptions);
   size_t count = std::min((uint32_t)50, matches.GetSize());
   targets.reserve(count);
+  auto command_prefix = llvm::StringRef(text).rsplit(" ").second;
   for (size_t i = 0; i < count; i++) {
     std::string match = matches.GetStringAtIndex(i);
     std::string description = descriptions.GetStringAtIndex(i);
@@ -958,6 +959,15 @@
     else
       EmplaceSafeString(item, "label", match + " -- " + description);
 
+    auto command_prefix_size = command_prefix.size();
+    if (command_prefix_size && match.find(command_prefix, 0) == 0) {
+      EmplaceSafeString(item, "start",
+                        llvm::StringRef(std::to_string(actual_column -
+                                                       command_prefix_size)));
+      EmplaceSafeString(item, "length",
+                        llvm::StringRef(std::to_string(command_prefix_size)));
+    }
+
     targets.emplace_back(std::move(item));
   }