diff --git a/net.sf.redmine_mylyn.core/src/net/sf/redmine_mylyn/internal/core/RedmineSpentTimeManager.java b/net.sf.redmine_mylyn.core/src/net/sf/redmine_mylyn/internal/core/RedmineSpentTimeManager.java
index dc95f10..7036574 100644
--- a/net.sf.redmine_mylyn.core/src/net/sf/redmine_mylyn/internal/core/RedmineSpentTimeManager.java
+++ b/net.sf.redmine_mylyn.core/src/net/sf/redmine_mylyn/internal/core/RedmineSpentTimeManager.java
@@ -148,7 +148,7 @@ private void setElapsedTime(ITask task, long newElapsedTime) {
 		long uncapturedSpentTime  = readLongAttribute(task, UNCAPTURED_SPENT_TIME);
 		
 		if(newElapsedTime < oldElapsedTime) {
-			uncapturedSpentTime = newElapsedTime;
+			return;
 		} else {
 			uncapturedSpentTime += newElapsedTime-oldElapsedTime;
 		}