diff --git a/spec/index.bs b/spec/index.bs
index 1568d1d1c4..853497a173 100644
--- a/spec/index.bs
+++ b/spec/index.bs
@@ -1351,6 +1351,7 @@ enum GPUFeatureName {
     "depth24unorm-stencil8",
     "depth32float-stencil8",
     "pipeline-statistics-query",
+    "shader-float16",
     "texture-compression-bc",
     "timestamp-query",
 };
@@ -7156,6 +7157,13 @@ The following enums are supported if and only if the {{GPUFeatureName/"pipeline-
 </dl>
 
 
+## <dfn dfn-type=enum-value dfn-for=GPUFeatureName>shader-float16</dfn> ## {#shader-float16}
+
+Allows 16bit float arithmetic feature in shader and 16bit storage features for GPUBuffer.
+
+Issue: link to the 16bit float types, constructors, functions in WGSL spec.
+
+
 ## <dfn dfn-type=enum-value dfn-for=GPUFeatureName>texture-compression-bc</dfn> ## {#texture-compression-bc}
 
 Allows for explicit creation of textures of BC compressed formats.