diff --git a/archiva-modules/archiva-base/archiva-proxy/src/main/java/org/apache/archiva/proxy/DefaultRepositoryProxyConnectors.java b/archiva-modules/archiva-base/archiva-proxy/src/main/java/org/apache/archiva/proxy/DefaultRepositoryProxyConnectors.java
index d0db565f1..aa72a8b1a 100644
--- a/archiva-modules/archiva-base/archiva-proxy/src/main/java/org/apache/archiva/proxy/DefaultRepositoryProxyConnectors.java
+++ b/archiva-modules/archiva-base/archiva-proxy/src/main/java/org/apache/archiva/proxy/DefaultRepositoryProxyConnectors.java
@@ -51,7 +51,9 @@ import org.apache.archiva.scheduler.ArchivaTaskScheduler;
 import org.apache.archiva.scheduler.repository.RepositoryTask;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.FilenameUtils;
 import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang.SystemUtils;
 import org.apache.maven.wagon.ConnectionException;
 import org.apache.maven.wagon.ResourceDoesNotExistException;
 import org.apache.maven.wagon.Wagon;
@@ -286,6 +288,12 @@ public class DefaultRepositoryProxyConnectors
 
             String targetPath = targetRepository.toPath( artifact );
 
+            if ( SystemUtils.IS_OS_WINDOWS )
+            {
+                // toPath use system PATH_SEPARATOR so on windows url are \ which doesn't work very well :-)
+                targetPath = FilenameUtils.separatorsToUnix( targetPath );
+            }
+
             try
             {
                 File downloadedFile =