diff --git a/libkeyringctl/sequoia.py b/libkeyringctl/sequoia.py
index 0bfdae3..5289c89 100644
--- a/libkeyringctl/sequoia.py
+++ b/libkeyringctl/sequoia.py
@@ -317,11 +317,12 @@ def key_generate(uids: List[Uid], outfile: Path) -> str:
     The result of the key generate call
     """
 
-    cmd = ["sq", "key", "generate"]
-    for uid in uids:
-        cmd.extend(["--userid", str(uid)])
-    cmd.extend(["--export", str(outfile)])
-    return system(cmd)
+    # Current limitation of pysequoia: only one User ID allowed
+    assert len(uids) == 1
+    cert = str(Cert.generate(user_id = uids[0]))
+    with open(outfile, "wb") as f:
+        f.write(cert.encode("utf8"))
+    return cert
 
 
 def key_extract_certificate(key: Path, output: Optional[Path]) -> str: