diff --git a/test/ParallelIOTest.cpp b/test/ParallelIOTest.cpp
index 1042ce8920..40da7b250d 100644
--- a/test/ParallelIOTest.cpp
+++ b/test/ParallelIOTest.cpp
@@ -1998,7 +1998,7 @@ void joined_dim(std::string const &ext)
     }
 }
 
-TEST_CASE("joined_dim", "[serial]")
+TEST_CASE("joined_dim", "[parallel]")
 {
 #if 100000000 * ADIOS2_VERSION_MAJOR + 1000000 * ADIOS2_VERSION_MINOR +        \
         10000 * ADIOS2_VERSION_PATCH + 100 * ADIOS2_VERSION_TWEAK >=           \