diff --git a/ui/desktop/src/components/ParameterInputModal.tsx b/ui/desktop/src/components/ParameterInputModal.tsx
index bb79732fb..eb5a28784 100644
--- a/ui/desktop/src/components/ParameterInputModal.tsx
+++ b/ui/desktop/src/components/ParameterInputModal.tsx
@@ -94,7 +94,8 @@ const ParameterInputModal: React.FC<ParameterInputModalProps> = ({
     setInputValues((prevValues: Record<string, string>) => ({ ...prevValues, [name]: value }));
   };
 
-  const handleSubmit = (): void => {
+  const handleSubmit = (e: React.SyntheticEvent): void => {
+    e.preventDefault();
     setValidationErrors({});
 
     const requiredParams: Parameter[] = parameters.filter(needsUserValue);
diff --git a/ui/desktop/src/components/__tests__/ParameterInputModal.test.tsx b/ui/desktop/src/components/__tests__/ParameterInputModal.test.tsx
index 847ac9707..1f96b8dbd 100644
--- a/ui/desktop/src/components/__tests__/ParameterInputModal.test.tsx
+++ b/ui/desktop/src/components/__tests__/ParameterInputModal.test.tsx
@@ -80,6 +80,30 @@ describe('ParameterInputModal', () => {
       });
     });
 
+    it('prevents the default form submission when Enter is pressed in a parameter field', async () => {
+      const user = userEvent.setup();
+      renderWithIntl(<ParameterInputModal {...defaultProps} />);
+
+      let submitFired = false;
+      let defaultPrevented: boolean | undefined;
+      const captureSubmit = (event: Event) => {
+        submitFired = true;
+        // Read before suppressing, otherwise this listener would mask the result
+        defaultPrevented = event.defaultPrevented;
+        event.preventDefault();
+      };
+      document.addEventListener('submit', captureSubmit);
+
+      try {
+        await user.type(screen.getByLabelText(/test parameter 1/i), 'test value{Enter}');
+      } finally {
+        document.removeEventListener('submit', captureSubmit);
+      }
+
+      expect(submitFired).toBe(true);
+      expect(defaultPrevented).toBe(true);
+    });
+
     it('shows validation errors for required parameters', async () => {
       const user = userEvent.setup();
       renderWithIntl(<ParameterInputModal {...defaultProps} />);