diff --git a/src/NadekoBot/Db/Extensions/NadekoExpressionExtensions.cs b/src/NadekoBot/Db/Extensions/NadekoExpressionExtensions.cs
index 2ff117385..ffb25405d 100644
--- a/src/NadekoBot/Db/Extensions/NadekoExpressionExtensions.cs
+++ b/src/NadekoBot/Db/Extensions/NadekoExpressionExtensions.cs
@@ -12,10 +12,4 @@ public static class NadekoExpressionExtensions
 
     public static IEnumerable<NadekoExpression> ForId(this DbSet<NadekoExpression> exprs, ulong id)
         => exprs.AsNoTracking().AsQueryable().Where(x => x.GuildId == id).ToList();
-
-    public static NadekoExpression GetByGuildIdAndInput(
-        this DbSet<NadekoExpression> exprs,
-        ulong? guildId,
-        string input)
-        => exprs.FirstOrDefault(x => x.GuildId == guildId && x.Trigger.ToUpper() == input);
 }
\ No newline at end of file
diff --git a/src/NadekoBot/Modules/Expressions/NadekoExpressionsService.cs b/src/NadekoBot/Modules/Expressions/NadekoExpressionsService.cs
index acf6a4cb2..b8cba84b8 100644
--- a/src/NadekoBot/Modules/Expressions/NadekoExpressionsService.cs
+++ b/src/NadekoBot/Modules/Expressions/NadekoExpressionsService.cs
@@ -57,8 +57,8 @@ public sealed class NadekoExpressionsService : IExecOnMessage, IReadyExecutor
     // 1. expressions are almost never added (compared to how many times they are being looped through)
     // 2. only need write locks for this as we'll rebuild+replace the array on every edit
     // 3. there's never many of them (at most a thousand, usually < 100)
-    private NadekoExpression[] globalExpressions;
-    private ConcurrentDictionary<ulong, NadekoExpression[]> newguildExpressions;
+    private NadekoExpression[] globalExpressions = Array.Empty<NadekoExpression>();
+    private ConcurrentDictionary<ulong, NadekoExpression[]> newguildExpressions = new();
 
     private readonly DbService _db;
     private readonly DiscordSocketClient _client;