diff --git a/src/simulation/elements/ACID.cpp b/src/simulation/elements/ACID.cpp
index 620ced22c..72af0a315 100644
--- a/src/simulation/elements/ACID.cpp
+++ b/src/simulation/elements/ACID.cpp
@@ -82,7 +82,7 @@ static int update(UPDATE_FUNC_ARGS)
 							sim->kill_part(ID(r));
 						}
 					}
-					else if (rt != PT_CLNE && rt != PT_PCLN && parts[i].life >= 50 && sim->rng.chance(elements[rt].Hardness, 1000))
+					else if (rt != PT_CLNE && rt != PT_PCLN && parts[i].life > 50 && sim->rng.chance(elements[rt].Hardness, 1000))
 					{
 						if (sim->parts_avg(i, ID(r),PT_GLAS)!= PT_GLAS)//GLAS protects stuff from acid
 						{