diff --git a/src/util.rs b/src/util.rs
index 71fcaa45848e154bd6407540f221dacdbb6257c3..9d6e70211c113a0ca81d7e0aad0cd7bfa80a76ea 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -120,7 +120,7 @@ pub mod tests {
             .expect("temporary directory creation failed");
 
         // catch test panics in order to clean up temp dir which will be very large
-        f(tmp_dir.path()).expect("Error executing test with tmp dir")
+        f(&tmp_dir.path().canonicalize().unwrap()).expect("Error executing test with tmp dir")
     }
 
     /// Global counter to generate unique contract names in `with_new_contract_project`.