diff --git a/plugins/include/engine.inc b/plugins/include/engine.inc
index c7bf58ad..15430a52 100755
--- a/plugins/include/engine.inc
+++ b/plugins/include/engine.inc
@@ -273,8 +273,8 @@ native find_sphere_class(aroundent, _lookforclassname[], Float:radius, entlist[]
 //SDK function - checks if an origin is in an entity's view cone
 native is_in_viewcone(entity, Float:origin[3]);
 
-//SDK function - checks if an origin is visible to an entity
-native is_visible(entity, Float:origin[3]);
+//SDK function - checks if an entity is visible to an entity
+native is_visible(entity, target);
 
 //Added at twistedeuphoria's request, see funcwiki for details
 native trace_forward(Float:start[3], Float:angle, Float:give, ignoreEnt, &Float:hitX, &Float:hitY, &Float:shortestDistance, &Float:shortestDistLow, &Float:shortestDistHigh);