diff --git a/cmake/debug_flags.cmake b/cmake/debug_flags.cmake
index a0ad3d3f..7374b8e3 100644
--- a/cmake/debug_flags.cmake
+++ b/cmake/debug_flags.cmake
@@ -59,11 +59,10 @@ set (REALLY_NO_OPTIMIZATION_FLAGS "${REALLY_NO_OPTIMIZATION_FLAGS} -fno-web"
 set (REALLY_NO_OPTIMIZATION_FLAGS "${REALLY_NO_OPTIMIZATION_FLAGS} -fno-tree-slp-vectorize"             )# E&C.
 set (REALLY_NO_OPTIMIZATION_FLAGS "${REALLY_NO_OPTIMIZATION_FLAGS} -fthreadsafe-statics"                )# Slightly smaller in code that doesn't need to be TS.
 
-if (DEFINED ${BUILD_COVERAGE})
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${REALLY_NO_OPTIMIZATION_FLAGS}")
+if (DEFINED BUILD_COVERAGE)
   if (${BUILD_COVERAGE})
     include (cmake/CodeCoverage.cmake)
     APPEND_COVERAGE_COMPILER_FLAGS()
-    SETUP_TARGET_FOR_COVERAGE_GCOVR_XML(NAME coverage EXECUTABLE ctest DEPENDENCIES )
   endif ()
 endif ()
-set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${REALLY_NO_OPTIMIZATION_FLAGS}")