diff --git a/mkspecs/features/testcase.prf b/mkspecs/features/testcase.prf
index b3ccbd4a515..a6b8d82f1ef 100644
--- a/mkspecs/features/testcase.prf
+++ b/mkspecs/features/testcase.prf
@@ -97,7 +97,7 @@ contains(INSTALLS, target) {
     #   ...
     #
     for(file, TESTDATA) {
-        tdi = testdata_install_$${elem}
+        tdi = testdata_install_$${file}
         tdif = $${tdi}.files
         tdip = $${tdi}.path