diff --git a/CMakeLists.txt b/CMakeLists.txt
index c3e8579318f35c40939213c03b8604cca9923442..ade8b59113b141e54e31fc9cfcfc206070a075d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -109,7 +109,7 @@ if (CMAKE_BUILD_TYPE STREQUAL Coverage)
 endif ()
 
 # add call to ./do-copyright.py to run as unit-test-case
-add_test (NAME copyright_notices COMMAND "./do-copyright.py" WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+add_test (NAME copyright_notices COMMAND ./do-copyright.py WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
 
 # add call to do-clang-format.sh checking to run as unit-test-case
 add_test (NAME clang_format COMMAND ./do-clang-format.sh check WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})