diff --git a/CMakeLists.txt b/CMakeLists.txt
index e77a7d9..6fc7b39 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -172,7 +172,7 @@ if(NOT DEFINED SNMALLOC_ONLY_HEADER_LIBRARY)
           add_test(${TESTNAME} ${TESTNAME})
         endif()
         if (${TEST_CATEGORY} MATCHES "perf")
-          set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 3)
+          set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
         endif()
       endforeach()
     endforeach()