diff --git a/src/core/SkVMBlitter.cpp b/src/core/SkVMBlitter.cpp
index 3cde37ab42..ca8b93b8da 100644
--- a/src/core/SkVMBlitter.cpp
+++ b/src/core/SkVMBlitter.cpp
@@ -44,9 +44,10 @@ namespace {
     }
 
     static SkLRUCache<Key, skvm::Program>* try_acquire_program_cache() {
-    #if defined(SK_BUILD_FOR_IOS) && defined(__arm)
-        // Some troublemaker build configurations (so far {Flutter,G3}/iOS/armv7) don't
-        // support thread_local.  We could use an SkSpinlock and tryAcquire()/release(), or...
+    #if defined(SK_BUILD_FOR_IOS)
+        // iOS doesn't support thread_local on versions less than 9.0. pthread
+        // based fallbacks must be used there. We could also use an SkSpinlock
+        // and tryAcquire()/release(), or...
         return nullptr;  // ... we could just not cache programs on those platforms.
     #else
         thread_local static auto* cache = new SkLRUCache<Key, skvm::Program>{8};