diff --git a/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt b/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt
index 6685a76683e..b8b20612649 100644
--- a/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt
+++ b/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt
@@ -26,5 +26,6 @@ if(CMAKE_CROSSCOMPILING)
     add_library(zlib_solo ${SOLO_SOURCE})
     add_target_compile_definitions(zlib_solo Z_SOLO)
 else()
-    add_library(zlibhost ${SOURCE} ${SOLO_SOURCE})
+    add_library(zlibhost ${SOLO_SOURCE})
+    add_target_compile_definitions(zlibhost Z_SOLO)
 endif()