Henin is seeded 17th for Wimbledon
Justine Henin won her first grass-court title in three years on Saturday to boost her confidence ahead of her return to Wimbledon next week.
The top seed rallied from 3-0 down in the final set to beat Germany's Andrea Petkovic 3-6 6-3 6-4 in the final of the Unicef Open in the Netherlands.
It was Henin's second title since ending her retirement in January.
The former world number one, who has never won Wimbledon, said: "I kept fighting. I needed to win on grass."
Henin needed all her experience after losing the first set to her 22-year-old opponent.
The 28-year-old Belgian bounced back to win the second but then dropped serve to fall 3-0 behind in the decider.
However, Henin broke Petkovic twice to snatch the title and secure her 43rd singles title and second since January following her victory in Stuttgart earlier in the year.
Ukraine's Sergiy Stakhovsky took the men's title, needing just 56 minutes to beat Serbia's Janko Tipsarevic 6-3 6-0.
Stakhovsky, ranked 71 in the world, did not drop a set all week and the 24-year-old had his serve broken only three times in 46 games.
Tipsarevic, ranked 20 places higher, had a dismal day, claiming just nine points in a second set that lasted a mere 22 minutes.