diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2157ee2..b7eb26f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.6.21 (Jun 22, 2023)
+
+BUG FIXES:
+
+* Fixed error message when autogen subdomain is unable to destroy.
+
 ## 0.6.20 (May 15, 2023)
 
 BUG FIXES:
diff --git a/internal/provider/resource_autogen_subdomain.go b/internal/provider/resource_autogen_subdomain.go
index 54863d0..a524dfe 100644
--- a/internal/provider/resource_autogen_subdomain.go
+++ b/internal/provider/resource_autogen_subdomain.go
@@ -211,7 +211,7 @@ func (r *resourceAutogenSubdomain) Destroy(ctx context.Context, prior map[string
 	} else if !found {
 		diags = append(diags, &tfprotov5.Diagnostic{
 			Severity: tfprotov5.DiagnosticSeverityError,
-			Summary:  fmt.Sprintf("The autogen_subdomain for the subdomain %d and env %q is missing.", subdomainId, envId),
+			Summary:  fmt.Sprintf("The autogen_subdomain for the subdomain %d and env %d is missing.", subdomainId, envId),
 		})
 	}