diff --git a/config/nuclearcraft.cfg b/config/nuclearcraft.cfg
index 9930105..b3ae9e3 100644
--- a/config/nuclearcraft.cfg
+++ b/config/nuclearcraft.cfg
@@ -354,7 +354,7 @@ fission {
     B:fission_overheat=true
 
     # Will fission reactors explode when they overheat?
-    B:fission_explosions=false
+    B:fission_explosions=true
 
     # Modifies the radiation leaked by meltdowns.
     D:fission_meltdown_radiation_multiplier=1.0