diff --git a/base/runtime/heap_allocator.odin b/base/runtime/heap_allocator.odin
index fba56c10a..0fb160347 100644
--- a/base/runtime/heap_allocator.odin
+++ b/base/runtime/heap_allocator.odin
@@ -1,4 +1,6 @@
+#+build !js
 #+build !orca
+#+build !wasi
 package runtime
 
 import "base:intrinsics"
diff --git a/base/runtime/heap_allocator_control.odin b/base/runtime/heap_allocator_control.odin
index f7ead8f57..4224058ae 100644
--- a/base/runtime/heap_allocator_control.odin
+++ b/base/runtime/heap_allocator_control.odin
@@ -1,4 +1,6 @@
+#+build !js
 #+build !orca
+#+build !wasi
 package runtime
 
 import "base:intrinsics"
diff --git a/base/runtime/heap_allocator_debugging.odin b/base/runtime/heap_allocator_debugging.odin
index e2315c37a..d055f2ce9 100644
--- a/base/runtime/heap_allocator_debugging.odin
+++ b/base/runtime/heap_allocator_debugging.odin
@@ -1,4 +1,6 @@
+#+build !js
 #+build !orca
+#+build !wasi
 package runtime
 
 import "base:intrinsics"
diff --git a/base/runtime/heap_allocator_implementation.odin b/base/runtime/heap_allocator_implementation.odin
index 59738fcf6..be3a4097f 100644
--- a/base/runtime/heap_allocator_implementation.odin
+++ b/base/runtime/heap_allocator_implementation.odin
@@ -1,4 +1,6 @@
+#+build !js
 #+build !orca
+#+build !wasi
 package runtime
 
 import "base:intrinsics"
diff --git a/base/runtime/heap_allocator_info.odin b/base/runtime/heap_allocator_info.odin
index 8fcc9cfb6..9249845b4 100644
--- a/base/runtime/heap_allocator_info.odin
+++ b/base/runtime/heap_allocator_info.odin
@@ -1,4 +1,6 @@
+#+build !js
 #+build !orca
+#+build !wasi
 package runtime
 
 import "base:intrinsics"