diff --git a/package/src/runtime/imports.d.ts b/package/src/runtime/imports.d.ts
index aff4b1d1e..746353817 100644
--- a/package/src/runtime/imports.d.ts
+++ b/package/src/runtime/imports.d.ts
@@ -1,10 +1,10 @@
 declare module "extism:host" {
   interface user {
-    from_virtual_path(path: I64): I64;
-    to_virtual_path(path: I64): I64;
-    host_log(input: I64): void;
-    exec_command(input: I64): I64;
-    get_env_var(name: I64): I64;
-    set_env_var(name: I64, value: I64): void;
+    from_virtual_path(path: PTR): PTR;
+    to_virtual_path(path: PTR): PTR;
+    host_log(input: PTR): void;
+    exec_command(input: PTR): PTR;
+    get_env_var(name: PTR): PTR;
+    set_env_var(name: PTR, value: PTR): void;
   }
 }
diff --git a/package/test/src/index.d.ts b/package/test/src/index.d.ts
index 2587d5e1e..1e62ba9bb 100644
--- a/package/test/src/index.d.ts
+++ b/package/test/src/index.d.ts
@@ -9,14 +9,14 @@ declare module "main" {
   export function verify_checksum(): I32;
 }
 
-// These imports unfortunately has to be copied, as extism-js only parses this file.
+// These imports unfortunately have to be copied, as extism-js only parses this file.
 declare module "extism:host" {
   interface user {
-    from_virtual_path(path: I64): I64;
-    to_virtual_path(path: I64): I64;
-    host_log(input: I64): void;
-    exec_command(input: I64): I64;
-    get_env_var(name: I64): I64;
-    set_env_var(name: I64, value: I64): void;
+    from_virtual_path(path: PTR): PTR;
+    to_virtual_path(path: PTR): PTR;
+    host_log(input: PTR): void;
+    exec_command(input: PTR): PTR;
+    get_env_var(name: PTR): PTR;
+    set_env_var(name: PTR, value: PTR): void;
   }
 }