diff --git a/ports/assimp/portfile.cmake b/ports/assimp/portfile.cmake
index 0642fb701fc..660c9d40e74 100644
--- a/ports/assimp/portfile.cmake
+++ b/ports/assimp/portfile.cmake
@@ -20,6 +20,7 @@ vcpkg_configure_cmake(
             -DASSIMP_BUILD_ZLIB=False
             -DASSIMP_BUILD_ASSIMP_TOOLS=False
             -DASSIMP_INSTALL_PDB=False
+            -DZLIB_HOME=${CURRENT_INSTALLED_DIR}
 )
 
 vcpkg_install_cmake()