diff --git a/app/main/views/sign_in.py b/app/main/views/sign_in.py
index 2440473fb..e5f19e7cb 100644
--- a/app/main/views/sign_in.py
+++ b/app/main/views/sign_in.py
@@ -29,20 +29,11 @@ from notifications_utils.url_safe_token import generate_token
 
 
 def _reformat_keystring(orig):
-    private_key = "PRIVATE "  # pragma: allowlist secret
-    private_key = f"{private_key} KEY"
-    new_keystring = orig.replace(f"-----BEGIN {private_key}-----", "")
-    new_keystring = new_keystring.replace(f"-----END {private_key}-----", "")
-    new_keystring = new_keystring.strip()
-    new_keystring = new_keystring.replace(" ", "\n")
-    new_keystring = "\n".join(
-        [
-            f"-----BEGIN {private_key}-----",
-            new_keystring,
-            f"-----END {private_key}-----",
-        ]
-    )
-    new_keystring = f"{new_keystring}\n"
+    arr = orig.split("-----")
+    begin = arr[1]
+    end = arr[3]
+    middle = arr[2].strip()
+    new_keystring = f"-----{begin}-----\n{middle}\n-----{end}-----\n"
     return new_keystring