diff --git a/convert-gptq-to-ggml.py b/convert-gptq-to-ggml.py
index 42e99c2ff8d3b..d85f45831f8bc 100644
--- a/convert-gptq-to-ggml.py
+++ b/convert-gptq-to-ggml.py
@@ -36,7 +36,7 @@
 
 fout = open(fname_out, "wb")
 
-fout.write(struct.pack("i", 0x67676d66)) # magic: ggmf in hex
+fout.write(struct.pack("i", 0x67676a74)) # magic: ggjt in hex
 fout.write(struct.pack("i", 1)) # file version
 fout.write(struct.pack("i", n_vocab))
 fout.write(struct.pack("i", n_embd))