diff --git a/ports/pthreads/portfile.cmake b/ports/pthreads/portfile.cmake
index d07e23ef48..cda6efb327 100644
--- a/ports/pthreads/portfile.cmake
+++ b/ports/pthreads/portfile.cmake
@@ -37,3 +37,8 @@ file(INSTALL
     DESTINATION ${CURRENT_PACKAGES_DIR}/lib
     RENAME pthreads.lib
 )
+file(INSTALL 
+    ${CURRENT_PACKAGES_DIR}/debug/lib/pthreadsVC2d.lib
+    DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib
+    RENAME pthreads.lib
+)