diff --git a/packages/@ourworldindata/grapher/src/core/Grapher.jsdom.test.ts b/packages/@ourworldindata/grapher/src/core/Grapher.jsdom.test.ts
index 10eaf349674..f0ce835a22a 100755
--- a/packages/@ourworldindata/grapher/src/core/Grapher.jsdom.test.ts
+++ b/packages/@ourworldindata/grapher/src/core/Grapher.jsdom.test.ts
@@ -465,6 +465,16 @@ describe("urls", () => {
         expect(grapher.canonicalUrl?.includes("country")).toBeFalsy()
     })
 
+    it("embedUrl includes the tab param even if it's the default value", () => {
+        const grapher = new Grapher({
+            isPublished: true,
+            slug: "foo",
+            bakedGrapherURL: "/grapher",
+            tab: GrapherTabOption.map,
+        })
+        expect(grapher.embedUrl).toEqual("/grapher/foo?tab=map")
+    })
+
     it("can upgrade legacy urls", () => {
         expect(legacyToCurrentGrapherQueryParams("?year=2000")).toEqual({
             time: "2000",
diff --git a/packages/@ourworldindata/grapher/src/core/Grapher.tsx b/packages/@ourworldindata/grapher/src/core/Grapher.tsx
index a139eacf68f..507b2ed0d19 100644
--- a/packages/@ourworldindata/grapher/src/core/Grapher.tsx
+++ b/packages/@ourworldindata/grapher/src/core/Grapher.tsx
@@ -2999,7 +2999,17 @@ export class Grapher
     }
 
     @computed get embedUrl(): string | undefined {
-        return this.manager?.embedDialogUrl ?? this.canonicalUrl
+        const url = this.manager?.embedDialogUrl ?? this.canonicalUrl
+        if (!url) return
+
+        // We want to preserve the tab in the embed URL so that if we change the
+        // default view of the chart, it won't change existing embeds.
+        // See https://github.com/owid/owid-grapher/issues/2805
+        let urlObj = Url.fromURL(url)
+        if (!urlObj.queryParams.tab) {
+            urlObj = urlObj.updateQueryParams({ tab: this.allParams.tab })
+        }
+        return urlObj.fullUrl
     }
 
     @computed get embedDialogAdditionalElements():
diff --git a/packages/@ourworldindata/grapher/src/modal/EmbedModal.tsx b/packages/@ourworldindata/grapher/src/modal/EmbedModal.tsx
index ba479feeba5..14e00415c04 100644
--- a/packages/@ourworldindata/grapher/src/modal/EmbedModal.tsx
+++ b/packages/@ourworldindata/grapher/src/modal/EmbedModal.tsx
@@ -30,7 +30,7 @@ export class EmbedModal extends React.Component<EmbedModalProps> {
     }
 
     @computed private get codeSnippet(): string {
-        const url = this.manager.embedUrl ?? this.manager.canonicalUrl
+        const url = this.manager.embedUrl
         return `<iframe src="${url}" loading="lazy" style="width: 100%; height: 600px; border: 0px none;"></iframe>`
     }