diff --git a/Dalamud/Utility/StringExtensions.cs b/Dalamud/Utility/StringExtensions.cs
index 3aa9f70bd..1cd72c674 100644
--- a/Dalamud/Utility/StringExtensions.cs
+++ b/Dalamud/Utility/StringExtensions.cs
@@ -1,3 +1,5 @@
+using System.Diagnostics.CodeAnalysis;
+
 namespace Dalamud.Utility
 {
     /// <summary>
@@ -18,13 +20,13 @@ namespace Dalamud.Utility
         /// </summary>
         /// <param name="value">The string to test.</param>
         /// <returns>true if the value parameter is null or an empty string (""); otherwise, false.</returns>
-        public static bool IsNullOrEmpty(this string? value) => string.IsNullOrEmpty(value);
+        public static bool IsNullOrEmpty([NotNullWhen(false)] this string? value) => string.IsNullOrEmpty(value);
 
         /// <summary>
         /// Indicates whether a specified string is null, empty, or consists only of white-space characters.
         /// </summary>
         /// <param name="value">The string to test.</param>
         /// <returns>true if the value parameter is null or an empty string (""), or if value consists exclusively of white-space characters.</returns>
-        public static bool IsNullOrWhitespace(this string? value) => string.IsNullOrWhiteSpace(value);
+        public static bool IsNullOrWhitespace([NotNullWhen(false)] this string? value) => string.IsNullOrWhiteSpace(value);
     }
 }