diff --git a/wine_utils/dlls_setup.sh.in b/wine_utils/dlls_setup.sh.in
index 026486e8..6fcdf1ff 100644
--- a/wine_utils/dlls_setup.sh.in
+++ b/wine_utils/dlls_setup.sh.in
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-dlls_dir=@dlldir@
+dlls_dir='@dlldir@'
 path_pattern='s|^\s*PATH\s+REG_EXPAND_SZ\s+(.*)\s*$|\1|g'
 dlls_windir="Z:$(sed 's|/|\\|g'<<<$dlls_dir)"
 dlls_windir_pattern="$(sed 's|\\|\\\\|g'<<<$dlls_windir)"