diff --git a/wgpu-core/src/device/mod.rs b/wgpu-core/src/device/mod.rs
index 1dfcd1d8d4..912af26b39 100644
--- a/wgpu-core/src/device/mod.rs
+++ b/wgpu-core/src/device/mod.rs
@@ -5158,7 +5158,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
                 .composite_alpha_modes
                 .contains(&config.composite_alpha_mode)
             {
-                let new_alpha_mode = 'b: loop {
+                let new_alpha_mode = 'alpha: loop {
                     // Automatic alpha mode checks.
                     let fallbacks = match config.composite_alpha_mode {
                         wgt::CompositeAlphaMode::Auto => &[
@@ -5175,7 +5175,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
 
                     for &fallback in fallbacks {
                         if caps.composite_alpha_modes.contains(&fallback) {
-                            break 'b fallback;
+                            break 'alpha fallback;
                         }
                     }