diff --git a/packages/docusaurus-theme-bootstrap/src/theme/ThemedImage/index.tsx b/packages/docusaurus-theme-bootstrap/src/theme/ThemedImage/index.tsx
index 82cabd332a..56a9150963 100644
--- a/packages/docusaurus-theme-bootstrap/src/theme/ThemedImage/index.tsx
+++ b/packages/docusaurus-theme-bootstrap/src/theme/ThemedImage/index.tsx
@@ -21,7 +21,7 @@ const ThemedImage = (props: Props): JSX.Element => {
 
   type SourceName = keyof Props['sources'];
 
-  const clientTheme: SourceName[] = isDarkTheme ? ['dark'] : ['light'];
+  const clientThemes: SourceName[] = isDarkTheme ? ['dark'] : ['light'];
 
   const renderedSourceNames: SourceName[] = isClient
     ? clientTheme