diff --git a/cmake/modules/TestSuite.cmake b/cmake/modules/TestSuite.cmake
--- a/cmake/modules/TestSuite.cmake
+++ b/cmake/modules/TestSuite.cmake
@@ -1,9 +1,13 @@
 # Allow to easily build test suites
 
+if(NOT ${JCTEST})
+	set(JCTEST 1)
+endif()
+
 macro(create_test_suite NAME)
 	enable_testing()
 	set(TARGET "check-${NAME}")
-	add_custom_target(${TARGET} COMMAND ${CMAKE_CTEST_COMMAND})
+	add_custom_target(${TARGET} COMMAND ${CMAKE_CTEST_COMMAND} -j${JCTEST})
 
 	# If the magic target check-all exists, attach to it.
 	if(TARGET check-all)
@@ -15,4 +19,4 @@
 	add_executable(${NAME} EXCLUDE_FROM_ALL ${ARGN})
 	add_test(${NAME} ${NAME})
 	add_dependencies("check-${SUITE}" ${NAME})
-endfunction(add_test_to_suite)
+endfunction(add_test_to_suite)
\ No newline at end of file