diff --git a/server/masterserver/CMakeLists.txt b/server/masterserver/CMakeLists.txt
index 9cd38a7..37fc769 100644
--- a/server/masterserver/CMakeLists.txt
+++ b/server/masterserver/CMakeLists.txt
@@ -51,8 +51,6 @@ set(EXECUTABLE_OUTPUT_PATH
   ${PROJECT_BINARY_DIR}/../bin
 )
 
-set_directory_properties(PROPERTIES COMPILE_DEFINITIONS_DEBUG "_DEBUG")
-
 add_executable(
   masterserver ${SRC_LIST}
 )