diff --git a/internal/handlers/web/invoices.go b/internal/handlers/web/invoices.go
index 980970c..e63ac46 100644
--- a/internal/handlers/web/invoices.go
+++ b/internal/handlers/web/invoices.go
@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"html/template"
-	"io/ioutil"
+	"io"
 	"log"
 	"marmic/servicetrade-toolbox/internal/api"
 	"net/http"
@@ -137,7 +137,7 @@ func VoidInvoiceHandler(w http.ResponseWriter, r *http.Request) {
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {
-		body, _ := ioutil.ReadAll(resp.Body)
+		body, _ := io.ReadAll(resp.Body)
 		log.Printf("Failed to void invoice: %s", body)
 		http.Error(w, fmt.Sprintf("Failed to void invoice: %s", body), resp.StatusCode)
 		return
diff --git a/templates/partials/invoice_search_results.html b/templates/partials/invoice_search_results.html
index bade5bc..4683b78 100644
--- a/templates/partials/invoice_search_results.html
+++ b/templates/partials/invoice_search_results.html
@@ -10,6 +10,7 @@
 </div>
 {{else if .invoiceNumber}}
 <h3>Invoice Details</h3>
+{{if ne .status "void"}}
 <button
   hx-put="/void-invoice/{{.id}}"
   hx-confirm="Are you sure you want to void this invoice?"
@@ -17,6 +18,7 @@
   class="void-button">
   Void Invoice
 </button>
+{{end}}
 <p><strong>Invoice Number:</strong> {{.invoiceNumber}}</p>
 <p><strong>Total Price:</strong> ${{.totalPrice}}</p>
 <p><strong>Status:</strong> {{.status}}</p>