diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/core/math/Decimal.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/core/math/Decimal.kt
index f6efc24fd..8edc18204 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/core/math/Decimal.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/core/math/Decimal.kt
@@ -605,8 +605,16 @@ class Decimal @JvmOverloads constructor(whole: BigInteger, decimal: Double = 0.0
 		return BigDecimal(whole) + BigDecimal(decimal)
 	}
 
+	private var _signum = Int.MIN_VALUE
+
 	fun signum(): Int {
-		return whole.signum()
+		if (_signum == Int.MIN_VALUE) {
+			var cmp = whole.signum()
+			if (cmp == 0) cmp = if (decimal == 0.0) 0 else if (1.0 / decimal > 0.0) 1 else -1
+			_signum = cmp
+		}
+
+		return _signum
 	}
 
 	override fun compareTo(other: Decimal): Int {