diff --git a/tools/export/uvision5.py b/tools/export/uvision5.py
index bb6edfec8b..543625a237 100644
--- a/tools/export/uvision5.py
+++ b/tools/export/uvision5.py
@@ -36,10 +36,6 @@ class Uvision5(Exporter):
 
     MBED_CONFIG_HEADER_SUPPORTED = True
 
-    # backward compatibility with our scripts
-    def __init__(self):
-        self._targets = []
-
     @ExporterTargetsProperty
     def TARGETS(cls):
         if not hasattr(cls, "_targets_supported"):