diff --git a/crates/wasi-preview1-component-adapter/src/lib.rs b/crates/wasi-preview1-component-adapter/src/lib.rs
index 7ce52c6..55a8480 100644
--- a/crates/wasi-preview1-component-adapter/src/lib.rs
+++ b/crates/wasi-preview1-component-adapter/src/lib.rs
@@ -129,6 +129,9 @@ pub extern "C" fn run() -> u32 {
     unsafe extern "C" {
         safe fn _start();
     }
+    // Reserve adapter state before Go snapshots the linear-memory heap extent.
+    // Lazy memory.grow allocations otherwise overlap Go's sbrk allocator.
+    State::ptr();
     _start();
     0
 }