diff --git a/circuitpython_build_tools/build.py b/circuitpython_build_tools/build.py
index 06bcfad..72dd593 100644
--- a/circuitpython_build_tools/build.py
+++ b/circuitpython_build_tools/build.py
@@ -37,7 +37,7 @@
 import tempfile
 
 IGNORE_PY = ["setup.py", "conf.py", "__init__.py"]
-GLOB_PATTERNS = ["*.py", "font5x8.bin"]
+GLOB_PATTERNS = ["*.py", "*.bin"]
 S3_MPY_PREFIX = "https://adafruit-circuit-python.s3.amazonaws.com/bin/mpy-cross"
 
 def version_string(path=None, *, valid_semver=False):
@@ -283,7 +283,7 @@ def library(library_path, output_directory, package_folder_prefix,
             _munge_to_temp(full_path, temp_file, library_version)
             temp_filename = temp_file.name
             # Windows: close the temp file before it can be read or copied by name
-        if not mpy_cross or os.stat(full_path).st_size == 0:
+        if not mpy_cross or os.stat(full_path).st_size == 0 or not full_path.endswith(".py"):
             output_file = os.path.join(output_directory,
                                        filename.relative_to(library_path))
             shutil.copyfile(temp_filename, output_file)