diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0654721bd..9fc30f315 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -986,6 +986,9 @@ ENDIF()
 OPTION(ENABLE_PARALLEL_TESTS "Enable Parallel IO Tests. Ignored if netCDF4 is not enabled, or if there is no parallel I/O Support." ${USE_PARALLEL})
 IF(ENABLE_PARALLEL_TESTS AND USE_PARALLEL)
   SET(TEST_PARALLEL ON CACHE BOOL "")
+  IF(USE_NETCDF4)
+    SET(TEST_PARALLEL4 ON CACHE BOOL "")
+  ENDIF()
 ENDIF()
 
 # Determine whether or not to generate documentation.
diff --git a/nc_test4/CMakeLists.txt b/nc_test4/CMakeLists.txt
index 4e3ce1ca7..7e6c64a78 100644
--- a/nc_test4/CMakeLists.txt
+++ b/nc_test4/CMakeLists.txt
@@ -81,7 +81,7 @@ IF(USE_HDF4_FILE_TESTS AND NOT MSVC)
 ENDIF()
 
 
-IF(TEST_PARALLEL)
+IF(TEST_PARALLEL4)
   build_bin_test(tst_mpi_parallel)
   build_bin_test(tst_parallel)
   build_bin_test(tst_parallel3)