diff --git a/.github/workflows/ci_windows.yml b/.github/workflows/ci_windows.yml
index 5d7240798d5c1..11c57185fdd95 100644
--- a/.github/workflows/ci_windows.yml
+++ b/.github/workflows/ci_windows.yml
@@ -28,7 +28,7 @@ jobs:
       fail-fast: false
       matrix:
         toolset: [""]
-        build_type: [Release]
+        build_type: [Release, Debug]
         build_shared_libs: [OFF] # TODO(JS): Add ON once shared lib build is resolved
 
     steps:
diff --git a/dart/constraint/ConstraintSolver.cpp b/dart/constraint/ConstraintSolver.cpp
index 7f3331c535412..6b6fb87ae4b66 100644
--- a/dart/constraint/ConstraintSolver.cpp
+++ b/dart/constraint/ConstraintSolver.cpp
@@ -403,13 +403,8 @@ bool ConstraintSolver::containSkeleton(const ConstSkeletonPtr& skeleton) const
 //==============================================================================
 bool ConstraintSolver::hasSkeleton(const ConstSkeletonPtr& skeleton) const
 {
-#if _WIN32
-  DART_ASSERT(
-      skeleton != nullptr && "Not allowed to insert null pointer skeleton.");
-#else
   DART_ASSERT(
       skeleton != nullptr, "Not allowed to insert null pointer skeleton.");
-#endif
 
   for (const auto& itrSkel : mSkeletons) {
     if (itrSkel == skeleton)