diff --git a/spine-lua/AnimationState.lua b/spine-lua/AnimationState.lua
index bb144a2f7..d4e1bc0fd 100644
--- a/spine-lua/AnimationState.lua
+++ b/spine-lua/AnimationState.lua
@@ -38,6 +38,7 @@ local math_abs = math.abs
 local math_signum = utils.signum
 local math_floor = math.floor
 local math_ceil = math.ceil
+local math_mod = utils.mod
 
 local function zlen(array)
 	return #array + 1
@@ -442,7 +443,7 @@ function AnimationState:applyRotateTimeline (timeline, skeleton, time, alpha, se
       if math_abs(lastTotal) > 180 then lastTotal = lastTotal + 360 * math_signum(lastTotal) end
       dir = current
     end
-    total = diff + lastTotal - math_ceil(lastTotal / 360 - 0.5) * 360 -- FIXME used to be %360, store loops as part of lastTotal.
+    total = diff + lastTotal - math_mod(lastTotal, 360) -- FIXME used to be %360, store loops as part of lastTotal.
     if dir ~= current then total = total + 360 * math_signum(lastTotal) end
     timelinesRotation[i] = total
   end
diff --git a/spine-lua/utils.lua b/spine-lua/utils.lua
index ef8447c23..ba1e84111 100644
--- a/spine-lua/utils.lua
+++ b/spine-lua/utils.lua
@@ -138,4 +138,14 @@ function utils.signum (value)
   end
 end
 
+-- Implements Java float modulo
+function utils.mod(a, b)
+  if b < 0 then b = -b end
+  if a < 0 then
+    return -(-a % b)
+  else
+    return a % b
+  end
+end
+
 return utils