diff --git a/src/p_local.h b/src/p_local.h
index 23de23c85..431f7318f 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -66,6 +66,7 @@ typedef enum{
 	THINK_MAIN,
 	THINK_DYNSLOPE,
 	THINK_MOBJ,
+	THINK_PRECIP,
 	NUM_THINKERLISTS
 } thinklistnum_t; /**< Thinker lists. */
 extern thinker_t thlist[];
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 564a23b1e..0cf309e4e 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -9122,7 +9122,7 @@ static precipmobj_t *P_SpawnPrecipMobj(fixed_t x, fixed_t y, fixed_t z, mobjtype
 	mobj->momz = mobjinfo[type].speed;
 
 	mobj->thinker.function.acp1 = (actionf_p1)P_NullPrecipThinker;
-	P_AddThinker(THINK_MOBJ, &mobj->thinker);
+	P_AddThinker(THINK_PRECIP, &mobj->thinker);
 
 	CalculatePrecipFloor(mobj);