diff --git a/portal_client/client_application_uploader.py b/portal_client/client_application_uploader.py
index 07ba41f..cbb84ce 100755
--- a/portal_client/client_application_uploader.py
+++ b/portal_client/client_application_uploader.py
@@ -57,7 +57,7 @@ def set_version_as_current(self, slug, version):
         return requests.patch(
             urljoin(self.base_url, f"{slug}/"),
             data={"current_version": version},
-            headers={"Authorization": self.get_authorization_header()},
+            headers={"Authorization": get_authorization_header()},
         )
 
 
diff --git a/portal_client/utils.py b/portal_client/utils.py
index daab2d2..8914148 100644
--- a/portal_client/utils.py
+++ b/portal_client/utils.py
@@ -6,14 +6,14 @@ def get_authorization_header():
     if os.getenv("PORTAL_BACKEND_ACCESS_TOKEN"):
         return "Bearer %s" % os.getenv("PORTAL_BACKEND_ACCESS_TOKEN")
 
-    if os.getenv("POTAL_BACKEND_USERNAME") and os.getenv("POTAL_BACKEND_PASSWORD"):
+    if os.getenv("PORTAL_BACKEND_USERNAME") and os.getenv("PORTAL_BACKEND_PASSWORD"):
         return "Basic {}".format(
             b64encode(
                 bytes(
                     "%s:%s"
                     % (
-                        os.getenv("POTAL_BACKEND_USERNAME"),
-                        os.getenv("POTAL_BACKEND_PASSWORD"),
+                        os.getenv("PORTAL_BACKEND_USERNAME"),
+                        os.getenv("PORTAL_BACKEND_PASSWORD"),
                     ),
                     "utf-8",
                 )
@@ -21,5 +21,5 @@ def get_authorization_header():
         )
 
     raise Exception(
-        "Missing authentication! Please specify either PORTAL_BACKEND_ACCESS_TOKEN or POTAL_BACKEND_USERNAME and POTAL_BACKEND_PASSWORD"
+        "Missing authentication! Please specify either PORTAL_BACKEND_ACCESS_TOKEN or PORTAL_BACKEND_USERNAME and PORTAL_BACKEND_PASSWORD"
     )