diff --git a/TrainingExtensions/common/test/CMakeLists.txt b/TrainingExtensions/common/test/CMakeLists.txt
index 9b8aeb1bb3d..77d4be320dc 100644
--- a/TrainingExtensions/common/test/CMakeLists.txt
+++ b/TrainingExtensions/common/test/CMakeLists.txt
@@ -37,7 +37,7 @@
 add_test(CommonTrainingExtensionTest
       ${Python3_EXECUTABLE} -m pytest ${CMAKE_CURRENT_SOURCE_DIR} --junitxml=${CMAKE_CURRENT_BINARY_DIR}/py_test_output.xml
       )
-if(DEFINED ENV{FAST_RELEASE})
+if(NOT DEFINED ENV{FAST_RELEASE})
     # When building PyPI wheel packages (aka FAST_RELEASE),
     # we only want to test the pure wheel package without relying on any other build artifacts
     set_property(TEST CommonTrainingExtensionTest