diff --git a/main/commons/src/main/java/org/cryptomator/common/vaults/VaultModule.java b/main/commons/src/main/java/org/cryptomator/common/vaults/VaultModule.java
index 4844143a3..e9fe26957 100644
--- a/main/commons/src/main/java/org/cryptomator/common/vaults/VaultModule.java
+++ b/main/commons/src/main/java/org/cryptomator/common/vaults/VaultModule.java
@@ -101,7 +101,7 @@ public class VaultModule {
 		if (readOnly.get()) {
 			flags.append(" -ordonly");
 		}
-		flags.append(" -ovolname=").append(mountName.get());
+		flags.append(" -ovolname=").append('"').append(mountName.get()).append('"');
 		flags.append(" -oatomic_o_trunc");
 		flags.append(" -oauto_xattr");
 		flags.append(" -oauto_cache");
@@ -158,7 +158,7 @@ public class VaultModule {
 			flags.append(" -ouid=-1");
 			flags.append(" -ogid=-1");
 		}
-		flags.append(" -ovolname=").append(mountName.get());
+		flags.append(" -ovolname=").append('"').append(mountName.get()).append('"');
 		//Dokany requires this option to be set, WinFSP doesn't seem to share this peculiarity,
 		//but the option exists. Let's keep this here in case we need it.
 //		flags.append(" -oThreadCount=").append(5);