diff --git a/src/k_kart.c b/src/k_kart.c
index 26c7c4811..d4d9ebcd7 100644
--- a/src/k_kart.c
+++ b/src/k_kart.c
@@ -3407,7 +3407,7 @@ void K_TumblePlayer(player_t *player, mobj_t *inflictor, mobj_t *source)
 		P_StartQuake(64<<FRACBITS, 10);
 }
 
-static angle_t K_TumbleSlope(mobj_t *mobj, angle_t pitch, angle_t roll)
+angle_t K_StumbleSlope(mobj_t *mobj, angle_t pitch, angle_t roll)
 {
 	fixed_t pitchMul = -FINESINE(mobj->angle >> ANGLETOFINESHIFT);
 	fixed_t rollMul = FINECOSINE(mobj->angle >> ANGLETOFINESHIFT);
@@ -3422,11 +3422,7 @@ static angle_t K_TumbleSlope(mobj_t *mobj, angle_t pitch, angle_t roll)
 	return slope;
 }
 
-
-#define STEEP_VAL ANG60
-#define STEEP_VAL_AIR ANG30 + ANG10
-
-boolean K_CheckSlopeTumble(player_t *player, angle_t oldPitch, angle_t oldRoll, boolean fromAir)
+boolean K_CheckStumble(player_t *player, angle_t oldPitch, angle_t oldRoll, boolean fromAir)
 {
 	angle_t steepVal = ANGLE_MAX;
 	fixed_t gravityadjust;
@@ -3451,14 +3447,14 @@ boolean K_CheckSlopeTumble(player_t *player, angle_t oldPitch, angle_t oldRoll,
 
 	if (fromAir == true)
 	{
-		steepVal = STEEP_VAL_AIR;
+		steepVal = STUMBLE_STEEP_VAL_AIR;
 	}
 	else
 	{
-		steepVal = STEEP_VAL;
+		steepVal = STUMBLE_STEEP_VAL;
 	}
 
-	oldSlope = K_TumbleSlope(player->mo, oldPitch, oldRoll);
+	oldSlope = K_StumbleSlope(player->mo, oldPitch, oldRoll);
 
 	if (oldSlope <= steepVal)
 	{
@@ -3467,7 +3463,7 @@ boolean K_CheckSlopeTumble(player_t *player, angle_t oldPitch, angle_t oldRoll,
 		return false;
 	}
 
-	newSlope = K_TumbleSlope(player->mo, player->mo->pitch, player->mo->roll);
+	newSlope = K_StumbleSlope(player->mo, player->mo->pitch, player->mo->roll);
 	slopeDelta = AngleDelta(oldSlope, newSlope);
 
 	if (slopeDelta <= steepVal)
diff --git a/src/k_kart.h b/src/k_kart.h
index 8881729ad..796392d85 100644
--- a/src/k_kart.h
+++ b/src/k_kart.h
@@ -28,6 +28,9 @@ Make sure this matches the actual number of states
 #define GROW_PHYSICS_SCALE (3*FRACUNIT/2)
 #define SHRINK_PHYSICS_SCALE (3*FRACUNIT/4)
 
+#define STUMBLE_STEEP_VAL ANG60
+#define STUMBLE_STEEP_VAL_AIR (ANG30 + ANG10)
+
 player_t *K_GetItemBoxPlayer(mobj_t *mobj);
 angle_t K_ReflectAngle(angle_t angle, angle_t against, fixed_t maxspeed, fixed_t yourspeed);
 
@@ -70,7 +73,8 @@ void K_DoInstashield(player_t *player);
 void K_BattleAwardHit(player_t *player, player_t *victim, mobj_t *inflictor, UINT8 bumpersRemoved);
 void K_SpinPlayer(player_t *player, mobj_t *inflictor, mobj_t *source, INT32 type);
 void K_TumblePlayer(player_t *player, mobj_t *inflictor, mobj_t *source);
-boolean K_CheckSlopeTumble(player_t *player, angle_t oldPitch, angle_t oldRoll, boolean fromAir);
+angle_t K_StumbleSlope(mobj_t *mobj, angle_t pitch, angle_t roll);
+boolean K_CheckStumble(player_t *player, angle_t oldPitch, angle_t oldRoll, boolean fromAir);
 INT32 K_ExplodePlayer(player_t *player, mobj_t *inflictor, mobj_t *source);
 void K_DebtStingPlayer(player_t *player, mobj_t *source);
 void K_HandleBumperChanges(player_t *player, UINT8 prevBumpers);
diff --git a/src/p_user.c b/src/p_user.c
index 9eba0531e..7e6e1b1f9 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -1338,7 +1338,7 @@ boolean P_PlayerHitFloor(player_t *player, boolean fromAir, angle_t oldPitch, an
 			if (P_IsObjectOnGround(player->mo) && (player->mo->eflags & MFE_JUSTHITFLOOR))
 				air = true;
 
-			if (K_CheckSlopeTumble(player, oldPitch, oldRoll, air))
+			if (K_CheckStumble(player, oldPitch, oldRoll, air))
 				return false;
 		}
 	}