diff --git a/src/lib/components/modes/tablemode/JSONValue.svelte b/src/lib/components/modes/tablemode/JSONValue.svelte
index c142b14f..6abd21b5 100644
--- a/src/lib/components/modes/tablemode/JSONValue.svelte
+++ b/src/lib/components/modes/tablemode/JSONValue.svelte
@@ -47,5 +47,7 @@
{#each renderers as renderer}
-
+ {#key renderer.component}
+
+ {/key}
{/each}
diff --git a/src/lib/components/modes/treemode/JSONValue.svelte b/src/lib/components/modes/treemode/JSONValue.svelte
index 2213810c..274b7587 100644
--- a/src/lib/components/modes/treemode/JSONValue.svelte
+++ b/src/lib/components/modes/treemode/JSONValue.svelte
@@ -34,5 +34,7 @@
{#each renderers as renderer}
-
+ {#key renderer.component}
+
+ {/key}
{/each}