diff --git a/packages/toolkit/config/__tests__/__snapshots__/webpack-basic-config.js.snap b/packages/toolkit/config/__tests__/__snapshots__/webpack-basic-config.js.snap
index 857b9fff..26517f90 100644
--- a/packages/toolkit/config/__tests__/__snapshots__/webpack-basic-config.js.snap
+++ b/packages/toolkit/config/__tests__/__snapshots__/webpack-basic-config.js.snap
@@ -315,7 +315,7 @@ Object {
         return 'fast-refresh/hmr-runtime.js';
       }
 
-      return buildFiles[pathData.chunk.name].match(/\\/blocks\\//) ? filenames.block : filenames.js;
+      return buildFiles[pathData.chunk.name].match(/\\/blocks?\\//) ? filenames.block : filenames.js;
     },
     "path": "/dist",
   },
@@ -1129,7 +1129,7 @@ Object {
         return 'fast-refresh/hmr-runtime.js';
       }
 
-      return buildFiles[pathData.chunk.name].match(/\\/blocks\\//) ? filenames.block : filenames.js;
+      return buildFiles[pathData.chunk.name].match(/\\/blocks?\\//) ? filenames.block : filenames.js;
     },
     "path": "/dist",
   },
diff --git a/packages/toolkit/config/__tests__/__snapshots__/webpack-cli-arguments.js.snap b/packages/toolkit/config/__tests__/__snapshots__/webpack-cli-arguments.js.snap
index 0f81a316..b09ead24 100644
--- a/packages/toolkit/config/__tests__/__snapshots__/webpack-cli-arguments.js.snap
+++ b/packages/toolkit/config/__tests__/__snapshots__/webpack-cli-arguments.js.snap
@@ -332,7 +332,7 @@ Object {
         return 'fast-refresh/hmr-runtime.js';
       }
 
-      return buildFiles[pathData.chunk.name].match(/\\/blocks\\//) ? filenames.block : filenames.js;
+      return buildFiles[pathData.chunk.name].match(/\\/blocks?\\//) ? filenames.block : filenames.js;
     },
     "path": "/dist",
   },
@@ -507,7 +507,7 @@ Object {
         return 'fast-refresh/hmr-runtime.js';
       }
 
-      return buildFiles[pathData.chunk.name].match(/\\/blocks\\//) ? filenames.block : filenames.js;
+      return buildFiles[pathData.chunk.name].match(/\\/blocks?\\//) ? filenames.block : filenames.js;
     },
     "path": "/dist",
   },
@@ -682,7 +682,7 @@ Object {
         return 'fast-refresh/hmr-runtime.js';
       }
 
-      return buildFiles[pathData.chunk.name].match(/\\/blocks\\//) ? filenames.block : filenames.js;
+      return buildFiles[pathData.chunk.name].match(/\\/blocks?\\//) ? filenames.block : filenames.js;
     },
     "path": "/dist",
   },
diff --git a/packages/toolkit/config/__tests__/__snapshots__/webpack-fast-refresh.js.snap b/packages/toolkit/config/__tests__/__snapshots__/webpack-fast-refresh.js.snap
index d862c958..bf186aac 100644
--- a/packages/toolkit/config/__tests__/__snapshots__/webpack-fast-refresh.js.snap
+++ b/packages/toolkit/config/__tests__/__snapshots__/webpack-fast-refresh.js.snap
@@ -145,7 +145,7 @@ Object {
         return 'fast-refresh/hmr-runtime.js';
       }
 
-      return buildFiles[pathData.chunk.name].match(/\\/blocks\\//) ? filenames.block : filenames.js;
+      return buildFiles[pathData.chunk.name].match(/\\/blocks?\\//) ? filenames.block : filenames.js;
     },
     "path": "/dist",
   },