diff --git a/tests/src/collect.rs b/tests/src/collect.rs
index ee4f9db99..f10f4a2e3 100644
--- a/tests/src/collect.rs
+++ b/tests/src/collect.rs
@@ -48,7 +48,11 @@ impl FilePos {
 
 impl Display for FilePos {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        write!(f, "{}:{}", self.path.display(), self.line)
+        if self.line > 0 {
+            write!(f, "{}:{}", self.path.display(), self.line)
+        } else {
+            write!(f, "{}", self.path.display())
+        }
     }
 }