diff --git a/check_lib_packaging.py b/check_lib_packaging.py
index 8ec38ab..cbb4444 100644
--- a/check_lib_packaging.py
+++ b/check_lib_packaging.py
@@ -24,10 +24,11 @@
 )
 
 for libname in libnames:
-    library_path = pathlib.Path(libname)
+    full_libname = libname.replace(".", "/")
+    library_path = pathlib.Path(full_libname)
     if library_path.is_dir() != is_package:
         REQUIRED_CHANGE = "package" if library_path.is_dir() else "module"
         print(
-            f"Library {libname} should be specified as a {REQUIRED_CHANGE} in pyproject.toml!"
+            f"Library {full_libname} should be specified as a {REQUIRED_CHANGE} in pyproject.toml!"
         )
         sys.exit(1)