diff --git a/core/math/big/tests/build.bat b/core/math/big/tests/build.bat
index bebd40aac..c2a5ada18 100644
--- a/core/math/big/tests/build.bat
+++ b/core/math/big/tests/build.bat
@@ -3,6 +3,7 @@ set TEST_ARGS=-fast-tests
 set TEST_ARGS=
 set OUT_NAME=test_library
 set COMMON=-build-mode:shared -show-timings -no-bounds-check -define:MATH_BIG_EXE=false -vet -strict-style
-:odin build . %COMMON% -o:minimal -out:%OUT_NAME% && python test.py %TEST_ARGS%
-:odin build . %COMMON% -o:size    -out:%OUT_NAME% && python test.py %TEST_ARGS%
-odin build . %COMMON% -o:speed   -out:%OUT_NAME% && python test.py %TEST_ARGS%
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+set PATH_TO_ODIN==..\..\..\..\odin
+%PATH_TO_ODIN% build . %COMMON% -o:minimal -out:%OUT_NAME% && python test.py %TEST_ARGS%
+%PATH_TO_ODIN% build . %COMMON% -o:size    -out:%OUT_NAME% && python test.py %TEST_ARGS%
+%PATH_TO_ODIN% build . %COMMON% -o:speed   -out:%OUT_NAME% && python test.py %TEST_ARGS%
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