diff --git a/.changeset/clean-coins-hide.md b/.changeset/clean-coins-hide.md
new file mode 100644
index 000000000000..5f6f73282756
--- /dev/null
+++ b/.changeset/clean-coins-hide.md
@@ -0,0 +1,8 @@
+---
+"@biomejs/biome": patch
+"@biomejs/wasm-bundler": patch
+"@biomejs/wasm-nodejs": patch
+"@biomejs/wasm-web": patch
+---
+
+Fixed an issue where the function `scanProject` wouldn't work as expected.
diff --git a/crates/biome_service/src/scanner.rs b/crates/biome_service/src/scanner.rs
index dafb455a4582..f0b0f14a2a4c 100644
--- a/crates/biome_service/src/scanner.rs
+++ b/crates/biome_service/src/scanner.rs
@@ -404,7 +404,10 @@ impl Scanner {
                 ..
             } = self.scan_folder(folder, &ctx);
 
+            // Close the diagnostics channel before collecting to avoid a deadlock on WASM.
+            drop(ctx);
             let diagnostics = collector.run(diagnostics_receiver);
+
             (duration, diagnostics, configuration_files)
         };