diff --git a/reactos/drivers/filesystems/btrfs/CMakeLists.txt b/reactos/drivers/filesystems/btrfs/CMakeLists.txt
index 7e98893f5c1..730aa1f835c 100644
--- a/reactos/drivers/filesystems/btrfs/CMakeLists.txt
+++ b/reactos/drivers/filesystems/btrfs/CMakeLists.txt
@@ -1,4 +1,3 @@
-add_subdirectory(zlib)
 
 include_directories(${REACTOS_SOURCE_DIR}/sdk/include/reactos/drivers
                     ${REACTOS_SOURCE_DIR}/sdk/include/reactos/libs/zlib
@@ -36,4 +35,3 @@ target_link_libraries(btrfs ntoskrnl_vista zlib_solo ${PSEH_LIB})
 add_importlibs(btrfs ntoskrnl hal)
 add_pch(btrfs btrfs_drv.h SOURCE)
 add_cd_file(TARGET btrfs DESTINATION reactos/system32/drivers NO_CAB FOR all)
-
diff --git a/reactos/drivers/filesystems/btrfs/zlib/CMakeLists.txt b/reactos/drivers/filesystems/btrfs/zlib/CMakeLists.txt
deleted file mode 100644
index 06aa88d2f06..00000000000
--- a/reactos/drivers/filesystems/btrfs/zlib/CMakeLists.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-
-include_directories(${REACTOS_SOURCE_DIR}/sdk/include/reactos/libs/zlib
-                    inc)
-
-list(APPEND SOURCE
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/adler32.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/crc32.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/deflate.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/inffast.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/inflate.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/inftrees.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/trees.c
-    ${REACTOS_SOURCE_DIR}/sdk/lib/3rdparty/zlib/zutil.c)
-
-add_library(zlib_solo ${SOURCE})
-
-add_definitions(-DZ_SOLO)
diff --git a/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt b/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt
index 72468cd6856..6685a76683e 100644
--- a/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt
+++ b/reactos/sdk/lib/3rdparty/zlib/CMakeLists.txt
@@ -2,25 +2,29 @@
 add_definitions(-DNO_VIZ)
 include_directories(${REACTOS_SOURCE_DIR}/sdk/include/reactos/libs/zlib)
 
-list(APPEND SOURCE
+list(APPEND SOLO_SOURCE
     adler32.c
-    compress.c
     crc32.c
     deflate.c
+    inffast.c
+    inflate.c
+    inftrees.c
+    trees.c
+    zutil.c)
+
+list(APPEND SOURCE
+    compress.c
     gzclose.c
     gzlib.c
     gzread.c
     gzwrite.c
     infback.c
-    inffast.c
-    inflate.c
-    inftrees.c
-    trees.c
-    uncompr.c
-    zutil.c)
+    uncompr.c)
 
 if(CMAKE_CROSSCOMPILING)
-    add_library(zlib ${SOURCE})
+    add_library(zlib ${SOURCE} ${SOLO_SOURCE})
+    add_library(zlib_solo ${SOLO_SOURCE})
+    add_target_compile_definitions(zlib_solo Z_SOLO)
 else()
-    add_library(zlibhost ${SOURCE})
+    add_library(zlibhost ${SOURCE} ${SOLO_SOURCE})
 endif()