diff --git a/dap-was-lib/src/main/java/io/shinhanlife/dap/lib/validation/McpToolNameValidator.java b/dap-was-lib/src/main/java/io/shinhanlife/dap/lib/validation/McpToolNameValidator.java
index 89f4911c1..f491fd875 100644
--- a/dap-was-lib/src/main/java/io/shinhanlife/dap/lib/validation/McpToolNameValidator.java
+++ b/dap-was-lib/src/main/java/io/shinhanlife/dap/lib/validation/McpToolNameValidator.java
@@ -39,7 +39,7 @@ public final class McpToolNameValidator {
         try (var modules = Files.list(projectRoot)) {
             modules.filter(Files::isDirectory)
                     .filter(path -> path.getFileName().toString().startsWith("dap-was-"))
-                    .filter(path -> !path.getFileName().toString().equals("dap-was-core"))
+                    .filter(path -> !path.getFileName().toString().equals("dap-was-lib"))
                     .sorted()
                     .forEach(module -> collectDeclarations(module, declarationsByName));
         } catch (IOException exception) {