diff --git a/bundle_static.cmake b/bundle_static.cmake
index 4bae6cf6..d3002533 100644
--- a/bundle_static.cmake
+++ b/bundle_static.cmake
@@ -55,7 +55,7 @@ function(bundle_static_library tgt_name bundled_tgt_name library_name)
       OUTPUT ${bundled_tgt_full_name}
       COMMENT "Bundling ${bundled_tgt_name}"
       VERBATIM)
-  elseif(UNIX)
+  elseif(UNIX OR MINGW)
     file(WRITE ${CMAKE_BINARY_DIR}/${bundled_tgt_name}.ar.in
     "CREATE ${bundled_tgt_full_name}\n" )