Djalma cancelled out Youssef Msakni's penalty as Angola secured a 1-1 draw with Tunisia in Group E of the Africa Cup of Nations.
Monday's clash in Suez saw few clear chances created by either side, with Tunisia captain Msakni seemingly having stepped up to seal all three points for his team.
Naim Sliti was brought down in the box late in the first half and Msakni made no mistake with the resulting spot-kick, but Angola hit back and claimed a deserved point when Djalma slotted home.
Angola had the better of the opening 45 minutes but Tunisia took the lead in the 34th minute.