diff --git a/contrib/db/libmdbx/CMakeLists.txt b/contrib/db/libmdbx/CMakeLists.txt
index d7d5d018..68ca42eb 100644
--- a/contrib/db/libmdbx/CMakeLists.txt
+++ b/contrib/db/libmdbx/CMakeLists.txt
@@ -7,7 +7,7 @@ if(WIN32)
 elseif(APPLE)
   message(STATUS "MDBX locks: lck-posix.c")
   set (mdbx_sources "${mdbx_sources} src/lck-posix.c")  
-else
+else()
   message(STATUS "MDBX locks: lck-linux.c")
   set (mdbx_sources "${mdbx_sources} src/lck-linux.c")  
 endif()