diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 19f4c35ed..f15d70b21 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ${{matrix.os}}
     strategy:
       matrix:
-        os: [ ubuntu-latest, macos-latest ]
+        os: [ ubuntu-latest ]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/Engine/source/CMakeLists.txt b/Engine/source/CMakeLists.txt
index 8c7380df5..798d57eb7 100644
--- a/Engine/source/CMakeLists.txt
+++ b/Engine/source/CMakeLists.txt
@@ -16,6 +16,7 @@ forwardDef(TORQUE_SDL)
 if(TORQUE_TESTING)
 set(TORQUE_COMPILE_DEFINITIONS ${TORQUE_COMPILE_DEFINITIONS} TORQUE_TESTS_ENABLED)
 set(TORQUE_COMPILE_DEFINITIONS ${TORQUE_COMPILE_DEFINITIONS} "_VARIADIC_MAX=10")
+set(TORQUE_COMPILE_DEFINITIONS ${TORQUE_COMPILE_DEFINITIONS} TORQUE_DISABLE_MEMORY_MANAGER)
 endif()
 
 # On Windows we disable CRT Security warnings - this comes from recommendations to use non-portable functions.