Cameroon drew 1-1 with Panama in their final international friendly match ahead of the World Cup tournament in Qatar.
After coming on as a halftime substitute, Bayern Munich in form attacker Eric Maxim Choupo-Moting gave the Indomitable Lions the lead in the 48th minute.
But in the 55th minute, defender Michael Murillo's free-kick gave the Central Americans, who are ranked 17 places below Cameroon in the world rankings, the equalizer.
After losing to South Korea and Uzbekistan in September, Rigobert Song's team has struggled to win any of their pre-tournament games.
Cameroon will play Switzerland in their Group G opener on Thursday. They will next play Serbia on November 28 and five-time champions Brazil on December 2.
The team used by Cameroon:
XI: Onana, Fai, Castalletto, Nkoulou, Tolo, Honga, Zambo Anguissa, Ntcham, Mbeumo, Toko Ekambi, Aboubakar.
Subs used: Ebosse (for Tolo 46), Nkoudou (for Toko Ekambi 46), Choupo-Moting (for Aboubakar 46), Junde (for Ntcham 53), Bassogog (for Mbeumo 70), Wooh (for Nkoulou 77).
Below is Cameroon's full squad for the tournament:
Goalkeepers: Simon Ngapandouetnbu (Marseille), Devis Epassy (Abha), Andre Onana (Inter Milan)
Defenders: Nicolas Nkoulou (Aris Thessaloniki), Christopher Wooh (Rennes), Nouhou Tolo (Seattle Sounders), Olivier Mbaizo (Philadelphia Union), Collins Fai (Al-Tai), Jean-Charles Castelletto (Nantes), Enzo Ebosse (Udinese)
Midfielders: Olivier Ntcham (Swansea City), Pierre Kunde (Olympiacos), Martin Hongla (Hellas Verona), Samuel Gouet (Mechelen), Gael Ondoua (Hannover), Andre-Frank Zambo Anguissa (Napoli), Jerome Ngom (Colombe Dja)
Forwards: Moumi Ngamaleu (Dynamo Moscow), Georges-Kevin Nkoudou (Besiktas), Vincent Aboubakar (Al-Nassr), Karl Toko Ekambi (Lyon), Jean-Pierre Nsame (Young Boys), Bryan Mbeumo (Brentford), Eric Maxim Choupo-Moting (Bayern Munich), Christian Bassogog (Shanghai Shenhua), Marou Souaibou (Coton Sport)