diff --git a/packages/runtime-tests/integration/layout/position.test.tsx b/packages/runtime-tests/integration/layout/position.test.tsx
index 8272586..afecc67 100644
--- a/packages/runtime-tests/integration/layout/position.test.tsx
+++ b/packages/runtime-tests/integration/layout/position.test.tsx
@@ -71,7 +71,7 @@ test("relative position offsets visual position while keeping flow", async () =>
     )),
     { columns: 100 },
   );
-  expect(lastFrame({ trimLines: true })).toBe(" BA  ");
+  expect(lastFrame({ trimLines: true })).toBe(" BA");
 });
 
 test("static position ignores offsets", async () => {
diff --git a/packages/runtime-tests/integration/layout/width-height.test.tsx b/packages/runtime-tests/integration/layout/width-height.test.tsx
index d755c45..6fb7c3c 100644
--- a/packages/runtime-tests/integration/layout/width-height.test.tsx
+++ b/packages/runtime-tests/integration/layout/width-height.test.tsx
@@ -30,7 +30,7 @@ test("set width in percent", async () => {
     )),
     { columns: 100 },
   );
-  expect(lastFrame({ trimLines: true })).toBe("A    B    ");
+  expect(lastFrame({ trimLines: true })).toBe("A    B");
 });
 
 test("set min width", async () => {
diff --git a/packages/runtime/src/paint/paint.ts b/packages/runtime/src/paint/paint.ts
index 0546889..c65fba7 100644
--- a/packages/runtime/src/paint/paint.ts
+++ b/packages/runtime/src/paint/paint.ts
@@ -49,7 +49,7 @@ class Output {
         placeLine(grid, op.x, op.y + lineIdx, line);
       }
     }
-    return grid.map((row) => row.join("")).join("\n");
+    return grid.map((row) => row.join("").trimEnd()).join("\n");
   }
 }