diff --git a/packages/perseus/src/widgets/interactive-graphs/graphs/segment.tsx b/packages/perseus/src/widgets/interactive-graphs/graphs/segment.tsx
index 2def0c7f6e..ae89933b0b 100644
--- a/packages/perseus/src/widgets/interactive-graphs/graphs/segment.tsx
+++ b/packages/perseus/src/widgets/interactive-graphs/graphs/segment.tsx
@@ -94,7 +94,10 @@ const SegmentGraph = ({dispatch, graphState}: SegmentProps) => {
             aria-describedby={`wholeSegmentGraphAriaDescription-${segmentUniqueId}`}
         >
             {segments?.map((segment, i) => (
-                <g aria-describedby={`segment-description-${segmentUniqueId}-${i}`}>
+                <g
+                    aria-describedby={`segment-description-${segmentUniqueId}-${i}`}
+                    key={`${segmentUniqueId}-${i}`}
+                >
                     <MovableLine
                         key={i}
                         points={segment}