diff --git a/CMakeLists.txt b/CMakeLists.txt
index c3fc147..4717465 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,6 +8,7 @@ if(NOT CMAKE_CL_64)
 add_definitions(-D_USE_32BIT_TIME_T)
 endif(NOT CMAKE_CL_64)
 ENDIF(WIN32)
+string(SUBSTRING $ENV{VSCMD_VER} 0 2 VSCMD_VER)
 
 include_directories (C:/php-sdk/phpmaster/vc${VSCMD_VER}/$ENV{VSCMD_ARG_TGT_ARCH}/php-src)
 include_directories (C:/php-sdk/phpmaster/vc${VSCMD_VER}/$ENV{VSCMD_ARG_TGT_ARCH}/php-src/main)
@@ -19,6 +20,5 @@ add_library(example STATIC example.c)
 swig_add_library(php_example TYPE MODULE LANGUAGE php7 SOURCES example.i)
 target_compile_options(php_example PRIVATE /D_WIN32 /D_WINDOWS /DWINDOWS=1 /DZEND_WIN32=1 /DPHP_WIN32=1 /DWIN32 /DNDebug /DNDEBUG /DZEND_DEBUG=0 /DZTS=1)
 
-string(SUBSTRING $ENV{VSCMD_VER} 0 2 VSCMD_VER)
 target_link_libraries(php_example "C:/php-sdk/phpmaster/vc${VSCMD_VER}/$ENV{VSCMD_ARG_TGT_ARCH}/php-src/x64/Release_TS/php7ts.lib")
 target_link_libraries(php_example example)