diff --git a/.changeset/new-lions-grin.md b/.changeset/new-lions-grin.md
new file mode 100644
index 000000000..4b06bacad
--- /dev/null
+++ b/.changeset/new-lions-grin.md
@@ -0,0 +1,5 @@
+---
+"@preact/signals": patch
+---
+
+Avoid usage of `.base` and check the `_dom` on the vnode instead
diff --git a/packages/preact/src/index.ts b/packages/preact/src/index.ts
index 4e4bd53b5..20b86e783 100644
--- a/packages/preact/src/index.ts
+++ b/packages/preact/src/index.ts
@@ -119,8 +119,8 @@ function SignalValue(this: AugmentedComponent, { data }: { data: Signal }) {
 				// undefined before mounting or a non-text node. In both of those cases
 				// the update gets handled by a full rerender.
 				const value = wrappedSignal.value;
-				if (self.base && self.base.nodeType === 3) {
-					(self.base as Text).data = value;
+				if (self.__v && self.__v.__e && self.__v.__e.nodeType === 3) {
+					(self.__v.__e as Text).data = value;
 				}
 			}
 		});