diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5820d8bc..e6aa034c7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -113,7 +113,7 @@ if(NOT CMAKE_BUILD_TYPE MATCHES Debug)
 endif()
 if(CMAKE_BUILD_TYPE MATCHES Debug)
   message(STATUS "Configuring OSRM in debug mode")
-  if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+  if(NOT ${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
     message(STATUS "adding profiling flags")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage -fno-inline")
     set(CMAKE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage -fno-inline")