diff --git a/packages/core/src/compiler/compositionScoping.test.ts b/packages/core/src/compiler/compositionScoping.test.ts
index 1c01100c0..4c1a0189b 100644
--- a/packages/core/src/compiler/compositionScoping.test.ts
+++ b/packages/core/src/compiler/compositionScoping.test.ts
@@ -64,7 +64,6 @@ body { margin: 0; }
         getVariables: () => ({ title: "TOP-LEVEL-LEAK" }),
         fitTextFontSize: () => undefined,
       },
-      __captured: undefined as unknown,
     };
     const wrapped = wrapScopedCompositionScript(
       `window.__captured = __hyperframes.getVariables();`,
@@ -85,7 +84,6 @@ body { margin: 0; }
         getVariables: () => ({ title: "TOP-LEVEL-LEAK" }),
         fitTextFontSize: () => undefined,
       },
-      __captured: undefined as unknown,
     };
     const wrapped = wrapScopedCompositionScript(
       `window.__captured = __hyperframes.getVariables();`,
diff --git a/packages/core/src/runtime/compositionLoader.ts b/packages/core/src/runtime/compositionLoader.ts
index 6c87119a7..f69d6fa39 100644
--- a/packages/core/src/runtime/compositionLoader.ts
+++ b/packages/core/src/runtime/compositionLoader.ts
@@ -244,11 +244,8 @@ async function mountCompositionContent(params: {
       ...parseHostVariableValues(params.host),
     };
     if (Object.keys(merged).length > 0) {
-      const w = window as Window & {
-        __hfVariablesByComp?: Record<string, Record<string, unknown>>;
-      };
-      if (!w.__hfVariablesByComp) w.__hfVariablesByComp = {};
-      w.__hfVariablesByComp[scopeCompositionId] = merged;
+      if (!window.__hfVariablesByComp) window.__hfVariablesByComp = {};
+      window.__hfVariablesByComp[scopeCompositionId] = merged;
     }
   }