diff --git a/core/src/net/sf/openrocket/unit/Unit.java b/core/src/net/sf/openrocket/unit/Unit.java
index a0522c2ba..75931d050 100644
--- a/core/src/net/sf/openrocket/unit/Unit.java
+++ b/core/src/net/sf/openrocket/unit/Unit.java
@@ -104,7 +104,7 @@ public abstract class Unit {
 		
 		val = roundForDecimalFormat(val);
 		// Check for approximate integer
-		if (Math.abs(val - Math.floor(val)) < 0.001) {
+		if (Math.abs(val - Math.floor(val)) < 0.0001) {
 			return intFormat.format(val);
 		}
 		return decFormat.format(val);