diff --git a/Lombiq.JsonEditor/Services/JsonEditorContentSecurityPolicyProvider.cs b/Lombiq.JsonEditor/Services/JsonEditorContentSecurityPolicyProvider.cs
index e9fe6bd..27cd27d 100644
--- a/Lombiq.JsonEditor/Services/JsonEditorContentSecurityPolicyProvider.cs
+++ b/Lombiq.JsonEditor/Services/JsonEditorContentSecurityPolicyProvider.cs
@@ -31,7 +31,7 @@ protected override ValueTask ThenUpdateAsync(
         // directive" error.
         if (resourceExists)
         {
-            securityPolicies[ScriptSrc] = IContentSecurityPolicyProvider
+            securityPolicies[ScriptSrc] = ContentSecurityPolicyProvider
                 .GetDirective(securityPolicies, ScriptSrc)
                 .MergeWordSets(DirectiveValue);
         }