diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 90d3d5bd..b687a34d 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -52,6 +52,7 @@ jobs:
         gcc -Wall -fPIC -shared -Wl,--export-all-symbols -o libcalc.dll libcalc.c -Wl,--whole-archive $SBCL_SRC/src/runtime/libsbcl.a -Wl,--no-whole-archive -ladvapi32 -lsynchronization -lws2_32 -lzstd
         gcc -Wall -o example example.c -lcalc -L.
         mv libcalc.dll $MSYSTEM_PREFIX/bin
+        mv libcalc.core $MSYSTEM_PREFIX/bin
         echo "(+ 1 2)" | ./example.exe
         echo "(+ 1 2)" | python ./example.py
         python ./exhaust_heap.py