diff --git a/modules/loader-utils/src/lib/sources/image-source.ts b/modules/loader-utils/src/lib/sources/image-source.ts
index e616feaf7f..56d777086e 100644
--- a/modules/loader-utils/src/lib/sources/image-source.ts
+++ b/modules/loader-utils/src/lib/sources/image-source.ts
@@ -41,6 +41,8 @@ export type GetImageParameters = {
   styles?: unknown;
   /** bounding box of the requested map image */
   boundingBox: [min: [x: number, y: number], max: [x: number, y: number]];
+  /** @deprecated use boundingBox */
+  bbox?: [number, number, number, number];
   /** pixel width of returned image */
   width: number;
   /** pixels */
diff --git a/modules/wms/src/services/ogc/wms-service.ts b/modules/wms/src/services/ogc/wms-service.ts
index e0b4393ce8..099deb19dd 100644
--- a/modules/wms/src/services/ogc/wms-service.ts
+++ b/modules/wms/src/services/ogc/wms-service.ts
@@ -235,9 +235,9 @@ export class WMSSource extends ImageSource<WMSSourceProps> {
 
   async getImage(parameters: GetImageParameters): Promise<ImageType> {
     // Replace the GetImage `boundingBox` parameter with the WMS flat `bbox` parameter.
-    const {boundingBox, ...rest} = parameters;
+    const {boundingBox, bbox, ...rest} = parameters;
     const wmsParameters: WMSGetMapParameters = {
-      bbox: [...boundingBox[0], ...boundingBox[1]],
+      bbox: boundingBox ? [...boundingBox[0], ...boundingBox[1]] : bbox!,
       ...rest
     };
     return await this.getMap(wmsParameters);