diff --git a/service/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/service/filesharing/FileSystemService.java b/service/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/service/filesharing/FileSystemService.java
index 1a87c73f..b2f08f8d 100644
--- a/service/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/service/filesharing/FileSystemService.java
+++ b/service/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/service/filesharing/FileSystemService.java
@@ -53,7 +53,10 @@ private boolean moveFile(String destinationName, Path sourceFile, String queryId
         try {
             LOG.info("Moving query {} to file: {}", queryId, filePath);
             makeDirIfDNE(dirPath);
-            Path result = Files.move(sourceFile, filePath, REPLACE_EXISTING);
+            Path result = Files.copy(sourceFile, filePath, REPLACE_EXISTING);
+            // we have to copy and then delete because of how mv works with mounted drives
+            // (it doesn't work)
+            Files.delete(sourceFile);
             return Files.exists(result);
         } catch (IOException e) {
             LOG.error("Error moving.", e);