diff --git a/.github/workflows/cd.yaml b/.github/workflows/cd.yaml
index b02f5c7..d4b667b 100644
--- a/.github/workflows/cd.yaml
+++ b/.github/workflows/cd.yaml
@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x]
+        node-version: [18.x]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/src/command.ts b/src/command.ts
index 4ee66e6..7c01867 100644
--- a/src/command.ts
+++ b/src/command.ts
@@ -98,7 +98,7 @@ export function makeCommander(botContext: BotContext) {
           .split(/ +/);
         for (const [keywords, command] of Object.entries(botCommands)) {
           const kw = keywords.split(" ")
-          if (words.slice(0, kw.length) === kw) {
+          if (words.slice(0, kw.length).join(" ") === kw.join(" ")) {
             await command(message, words)
             return
           }