diff --git a/server/CMakeLists.txt b/server/CMakeLists.txt
index 30d85bc..2619315 100644
--- a/server/CMakeLists.txt
+++ b/server/CMakeLists.txt
@@ -238,7 +238,7 @@ elseif (BUILD_TYPE_NAME STREQUAL "")
 else ()
     SET(CPACK_PACKAGE_VERSION_DATA "-${BUILD_TYPE_NAME}")
 endif ()
-if (BUILD_TYPE EQUAL OFF)
+if (NOT BUILD_TYPE AND NOT BUILD_TYPE STREQUAL "0")
     SET(BUILD_TYPE "1")
 endif ()
 set_source_files_properties(src/build.cpp PROPERTIES