diff --git a/src/lib.rs b/src/lib.rs
index 1f515de..b2a116d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -62,7 +62,7 @@ impl ResourcesGenerator {
 
         let mut handlebars = String::new();
         for resource in &self.resources {
-            let canonical_source = canonicalize(&resource.source).expect("failed to get canonical path");
+            let canonical_source = canonicalize(&resource.source).expect(&format!("failed to get canonical path for {:?}", resource.source));
             let data_type = if resource.raw {
                 "[u8]"
             } else {