diff --git a/.changeset/few-paws-confess.md b/.changeset/few-paws-confess.md
new file mode 100644
index 00000000000..69965e20525
--- /dev/null
+++ b/.changeset/few-paws-confess.md
@@ -0,0 +1,5 @@
+---
+"@primer/react": patch
+---
+
+Explicitly set the `type` attribute for `SegmentedControl.Button`
diff --git a/packages/react/src/SegmentedControl/SegmentedControlButton.tsx b/packages/react/src/SegmentedControl/SegmentedControlButton.tsx
index 7644572608b..58003d167f5 100644
--- a/packages/react/src/SegmentedControl/SegmentedControlButton.tsx
+++ b/packages/react/src/SegmentedControl/SegmentedControlButton.tsx
@@ -38,6 +38,7 @@ const SegmentedControlButton: React.FC<React.PropsWithChildren<SegmentedControlB
       <SegmentedControlButtonStyled
         aria-current={selected}
         sx={getSegmentedControlButtonStyles({selected, children})}
+        type="button"
         {...rest}
       >
         <span className="segmentedControl-content">