diff --git a/src/server/scriptInfo.ts b/src/server/scriptInfo.ts
index 68dd59d2d32..78127925958 100644
--- a/src/server/scriptInfo.ts
+++ b/src/server/scriptInfo.ts
@@ -87,7 +87,6 @@ namespace ts.server {
             if (this.containingProjects.length === 0) {
                 return Errors.ThrowNoProject();
             }
-            Debug.assert(this.containingProjects.length !== 0);
             return this.containingProjects[0];
         }