diff --git a/webserver/src/main/java/io/kestra/webserver/controllers/FlowController.java b/webserver/src/main/java/io/kestra/webserver/controllers/FlowController.java
index 4819966924a..aaa096907f5 100644
--- a/webserver/src/main/java/io/kestra/webserver/controllers/FlowController.java
+++ b/webserver/src/main/java/io/kestra/webserver/controllers/FlowController.java
@@ -737,6 +737,7 @@ public HttpResponse<Void> importFlows(
                 }
             }
         } else {
+            fileUpload.discard();
             throw new IllegalArgumentException("Cannot import file of type " + fileName.substring(fileName.lastIndexOf('.')));
         }
 
diff --git a/webserver/src/main/java/io/kestra/webserver/controllers/TemplateController.java b/webserver/src/main/java/io/kestra/webserver/controllers/TemplateController.java
index 20849f6830f..4fce83cf050 100644
--- a/webserver/src/main/java/io/kestra/webserver/controllers/TemplateController.java
+++ b/webserver/src/main/java/io/kestra/webserver/controllers/TemplateController.java
@@ -369,6 +369,7 @@ public HttpResponse<Void> importTemplates(@Parameter(description = "The file to
                 }
             }
         } else {
+            fileUpload.discard();
             throw new IllegalArgumentException("Cannot import file of type " + fileName.substring(fileName.lastIndexOf('.')));
         }