diff --git a/loaih/build.py b/loaih/build.py
index b73b4e7..804fe0a 100644
--- a/loaih/build.py
+++ b/loaih/build.py
@@ -392,22 +392,26 @@ class Build(loaih.RemoteBuild):
     def __create_checksum__(self, file):
         """Internal function to create checksum file."""
 
-        checksum = subprocess.run(shlex.split(f"md5sum {file}"),
-            capture_output=True, text=True, encoding='utf-8', check=True)
+        checksum = subprocess.run(shlex.split(f"md5sum {file}"), shell=True,
+            capture_output=True, text=True, encoding='utf-8', check=True,
+            cwd=self.appnamedir)
 
         if checksum.stdout:
             with open(f"{file}.md5", 'w', encoding='utf-8') as checkfile:
+                print(f"DEBUG: writing checksum for {file}.")
                 checkfile.write(checksum.stdout)
 
 
     def publish(self):
         """Moves built versions to definitive storage."""
+
+        print("DEBUG: reached publish.")
+
         if all(self.built[arch] for arch in self.arch):
             # All files are already present in the full_path
             return
 
         os.chdir(self.appnamedir)
-
         # Two cases here: local and remote storage_path.
         if self.remoterepo:
             # Remote first.