diff --git a/resources/lib/std/math.c3 b/resources/lib/std/math.c3
index 798cd4156..c23957a0f 100644
--- a/resources/lib/std/math.c3
+++ b/resources/lib/std/math.c3
@@ -48,9 +48,9 @@ public func double log10(double x)
 	x = u.f;
 
 	hx += 0x3ff00000 - 0x3fe6a09e;
-	k += (int)(hx >> 20) - 0x3ff;
+	k += cast(hx >> 20 as int) - 0x3ff;
 	hx = (hx & 0x000fffff) + 0x3fe6a09e;
-	u.i = (ulong)(hx) << 32 | (u.i & 0xffffffff);
+	u.i = cast(hx as ulong) << 32 | (u.i & 0xffffffff);
 	x = u.f;