The gold was his for the taking with a leap of 7.41m, but Perlis-born Abdul Latif Romly fell way below his world record of 7.60m he set at last year's Rio Paralympics.
In Kuala Lumpur, Abdul Latif did it with his very first jump and it was enough to strike gold at the 9th Asean Para Games.
The silver went to Singapore's Suhairi Suhani with a jump of 6.85m while another Malaysian, Zulkifly Abdullah (6.51m) took the bronze.
The 20-year-old was eyeing for a new world mark on his home turf and was quite confident that he would be able to give the home supporters something to cheer about, including the Raja Muda of Perlis Tuanku Syed Faizuddin Putra Jamalullail who had turned up at the National Stadium in Bukit Jalil to watch him.
Winning the gold at the National Stadium completed a grand hat-trick of golds for the Malaysian long jumper in Para Games. He also won the gold at the 2014 Asian Para Games in Incheon, South Korea with a jump of 7.01m.
But Latif is not losing sleep over the "missed target" and instead has switched his attention to next year's Asian Para Games in Jakarta, Indonesia.
"I was honoured to have the Raja Muda come and watch me in action. I won the gold for Malaysia but personal satisfaction took a back seat," said Latif after his win
"I was confident of setting a new world mark on my home turf but it did not happen. I am sorry for that."
He won the gold in Myanmar (2014) and in Singapore (2015). In Singapore, he set a new games mark of 7.43m on his way to the gold.
Although Latif came down with food poisoning during the 29th SEA Games when he competed against able-bodied athletes, he did well to finish seventh in the field with a jump of 7.34m.
Latif may also get to compete at the Commonwealth Games in Gold Coast and the Asian Games if he can recover from his injury.