diff --git a/src/main/java/com/sparrowwallet/sparrow/AppController.java b/src/main/java/com/sparrowwallet/sparrow/AppController.java
index f0a200e4..ff994846 100644
--- a/src/main/java/com/sparrowwallet/sparrow/AppController.java
+++ b/src/main/java/com/sparrowwallet/sparrow/AppController.java
@@ -798,6 +798,7 @@ public class AppController implements Initializable {
 
             String fileName = ((Label)selectedTab.getGraphic()).getText();
             if(fileName != null && !fileName.isEmpty()) {
+                fileName = fileName.replace('/', '_');
                 if(!fileName.endsWith(".psbt")) {
                     fileName += ".psbt";
                 }
diff --git a/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java b/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java
index cb3bed45..b7ec2b7f 100644
--- a/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java
+++ b/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java
@@ -993,7 +993,7 @@ public class HeadersController extends TransactionFormController implements Init
         fileChooser.setTitle("Save PSBT");
 
         if(headersForm.getName() != null && !headersForm.getName().isEmpty()) {
-            fileChooser.setInitialFileName(headersForm.getName() + ".psbt");
+            fileChooser.setInitialFileName(headersForm.getName().replace('/', '_') + ".psbt");
         }
 
         AppServices.moveToActiveWindowScreen(window, 800, 450);