diff --git a/SDL3-CS.Tests.iOS/SDL3-CS.Tests.iOS.csproj b/SDL3-CS.Tests.iOS/SDL3-CS.Tests.iOS.csproj
index db14f90..31c6e93 100644
--- a/SDL3-CS.Tests.iOS/SDL3-CS.Tests.iOS.csproj
+++ b/SDL3-CS.Tests.iOS/SDL3-CS.Tests.iOS.csproj
@@ -8,6 +8,7 @@
     <ImplicitUsings>true</ImplicitUsings>
     <SupportedOSPlatformVersion>13.0</SupportedOSPlatformVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <CodesignKey>iPhone Developer</CodesignKey>
   </PropertyGroup>
 
   <ItemGroup>