1 files changed, 1 insertions, 1 deletions

diff --git a/src/WixToolset.Core/Librarian.cs b/src/WixToolset.Core/Librarian.cs
index 81d3a0ed..3c1810ac 100644
--- a/src/WixToolset.Core/Librarian.cs
+++ b/src/WixToolset.Core/Librarian.cs
@@ -95,7 +95,7 @@ namespace WixToolset.Core
                     {
                         var pathField = field.AsPath();
 
-                        if (pathField != null)
+                        if (pathField != null && !String.IsNullOrEmpty(pathField.Path))
                         {
                             var resolution = variableResolver.ResolveVariables(tuple.SourceLineNumbers, pathField.Path, false);