diff --git a/src/simulation/elements/PLUT.cpp b/src/simulation/elements/PLUT.cpp
index 69a2758b3..99cccb5be 100644
--- a/src/simulation/elements/PLUT.cpp
+++ b/src/simulation/elements/PLUT.cpp
@@ -28,7 +28,7 @@ Element_PLUT::Element_PLUT()
 
 	Temperature = R_TEMP+4.0f	+273.15f;
 	HeatConduct = 251;
-	Description = "Plutonium. Heavy, fissle particles. Generates neutrons under pressure.";
+	Description = "Plutonium. Heavy, fissile particles. Generates neutrons under pressure.";
 
 	Properties = TYPE_PART|PROP_NEUTPASS|PROP_RADIOACTIVE;