diff --git a/tests/compiler/__snapshots__/svg.test.ts.snap b/tests/compiler/__snapshots__/svg.test.ts.snap
index cfecd40f..852b23e4 100644
--- a/tests/compiler/__snapshots__/svg.test.ts.snap
+++ b/tests/compiler/__snapshots__/svg.test.ts.snap
@@ -27,3 +27,31 @@ exports[`properly support svg add proper namespace to svg 1`] = `
   }
 }"
 `;
+
+exports[`properly support svg namespace to g tags not added if already in svg namespace 1`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component } = bdom;
+  let { withDefault, getTemplate, prepareList, withKey, zero, call, callSlot, capture, isBoundary, shallowEqual, setContextValue, toNumber, safeOutput } = helpers;
+  
+  let block1 = createBlock(\`<svg block-ns=\\"http://www.w3.org/2000/svg\\"><g/></svg>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`properly support svg namespace to svg tags added even if already in svg namespace 1`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component } = bdom;
+  let { withDefault, getTemplate, prepareList, withKey, zero, call, callSlot, capture, isBoundary, shallowEqual, setContextValue, toNumber, safeOutput } = helpers;
+  
+  let block1 = createBlock(\`<svg block-ns=\\"http://www.w3.org/2000/svg\\"><svg block-ns=\\"http://www.w3.org/2000/svg\\"/></svg>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
diff --git a/tests/compiler/svg.test.ts b/tests/compiler/svg.test.ts
index ff450a08..b4d1fce0 100644
--- a/tests/compiler/svg.test.ts
+++ b/tests/compiler/svg.test.ts
@@ -1,8 +1,9 @@
 import { renderToString, snapshotEverything } from "../helpers";
 
+// NB: check the snapshots to see where the SVG namespaces are added
 snapshotEverything();
 
-describe.only("properly support svg", () => {
+describe("properly support svg", () => {
   test("add proper namespace to svg", () => {
     const template = `<svg width="100px" height="90px"><circle cx="50" cy="50" r="4" stroke="green" stroke-width="1" fill="yellow"/> </svg>`;
     expect(renderToString(template)).toBe(
@@ -11,10 +12,19 @@ describe.only("properly support svg", () => {
   });
 
   test("add proper namespace to g tags", () => {
-    // this is necessary if one wants to use components in a svg
     const template = `<g><circle cx="50" cy="50" r="4" stroke="green" stroke-width="1" fill="yellow"/> </g>`;
     expect(renderToString(template)).toBe(
       `<g><circle cx=\"50\" cy=\"50\" r=\"4\" stroke=\"green\" stroke-width=\"1\" fill=\"yellow\"></circle> </g>`
     );
   });
+
+  test("namespace to g tags not added if already in svg namespace", () => {
+    const template = `<svg><g/></svg>`;
+    expect(renderToString(template)).toBe(`<svg><g></g></svg>`);
+  });
+
+  test("namespace to svg tags added even if already in svg namespace", () => {
+    const template = `<svg><svg/></svg>`;
+    expect(renderToString(template)).toBe(`<svg><svg></svg></svg>`);
+  });
 });