diff --git a/doc/reference/slots.md b/doc/reference/slots.md
index 7c9637ec..d9a64ec2 100644
--- a/doc/reference/slots.md
+++ b/doc/reference/slots.md
@@ -46,6 +46,8 @@ Here is how the `Navbar` component could be defined, with the `t-slot` directive
 </div>
 ```
 
+Note that `t-slot` can only be used on a `<t>` element.
+
 ## Named slots
 
 Default slots are very useful, but sometimes, we may need more than one slot.
diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 0bf572d9..49585004 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -798,6 +798,12 @@ function parseTSlot(node: Element, ctx: ParsingContext): AST | null {
   if (!node.hasAttribute("t-slot")) {
     return null;
   }
+  if (node.tagName !== "t") {
+    throw new OwlError(
+      `Directive 't-slot' can only be used on <t> nodes (used on a <${node.tagName}>)`
+    );
+  }
+
   const name = node.getAttribute("t-slot")!;
   node.removeAttribute("t-slot");
   let attrs: Attrs | null = null;
diff --git a/tests/compiler/parser.test.ts b/tests/compiler/parser.test.ts
index 52178251..b3ac6acf 100644
--- a/tests/compiler/parser.test.ts
+++ b/tests/compiler/parser.test.ts
@@ -1686,6 +1686,12 @@ describe("qweb parser", () => {
     });
   });
 
+  test("t-slot on a div tag should throw", async () => {
+    expect(() => parse(`<div t-slot="name"/>`)).toThrowError(
+      "Directive 't-slot' can only be used on <t> nodes (used on a <div>)"
+    );
+  });
+
   // ---------------------------------------------------------------------------
   // t-debug
   // ---------------------------------------------------------------------------