diff --git a/flang/lib/Semantics/resolve-directives.cpp b/flang/lib/Semantics/resolve-directives.cpp
index 4aecb8b8e7b47..01ce8d989fdd1 100644
--- a/flang/lib/Semantics/resolve-directives.cpp
+++ b/flang/lib/Semantics/resolve-directives.cpp
@@ -2152,7 +2152,9 @@ void OmpAttributeVisitor::CreateImplicitSymbols(
         dirContext.defaultDSA == Symbol::Flag::OmpShared) {
       // 1) default
       // Allowed only with parallel, teams and task generating constructs.
-      assert(parallelDir || taskGenDir || teamsDir);
+      if (!parallelDir && !taskGenDir && !teamsDir) {
+        return;
+      }
       if (dirContext.defaultDSA != Symbol::Flag::OmpShared)
         makePrivateSymbol(dirContext.defaultDSA);
       else
diff --git a/flang/test/Semantics/OpenMP/default.f90 b/flang/test/Semantics/OpenMP/default.f90
index 94de7fa468692..a8d170724c12c 100644
--- a/flang/test/Semantics/OpenMP/default.f90
+++ b/flang/test/Semantics/OpenMP/default.f90
@@ -31,4 +31,13 @@ program omp_default
   end do
   !$omp end teams
 
+  !$omp parallel
+  !ERROR: DEFAULT clause is not allowed on the DO directive
+  !$omp do default(private)
+  do i = 1, 10
+     k = i
+  end do
+  !$omp end do
+  !$omp end parallel
+
 end program omp_default