diff --git a/test/tint/builtins/gen/var/log2/5b464b.wgsl.expected.glsl b/test/tint/builtins/gen/var/log2/5b464b.wgsl.expected.glsl
index 1429b32..d196daa 100644
--- a/test/tint/builtins/gen/var/log2/5b464b.wgsl.expected.glsl
+++ b/test/tint/builtins/gen/var/log2/5b464b.wgsl.expected.glsl
@@ -18,7 +18,7 @@
   return;
 }
 #version 310 es
-precision mediump float;
+precision highp float;
 
 void log2_5b464b() {
   float res = 0.0f;