diff --git a/tools/building.py b/tools/building.py
index 8b8c0d82f9454c0a65486afe357807da839896af..ed5672d228a3b290a57466a31996cebc9c93a141 100644
--- a/tools/building.py
+++ b/tools/building.py
@@ -173,7 +173,7 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
     tgt_dict = {'mdk':('keil', 'armcc'),
                 'mdk4':('keil', 'armcc'),
                 'mdk5':('keil', 'armcc'),
-                'iar':('iar', 'iar'),
+                'iar':('iar', 'iccarm'),
                 'vs':('msvc', 'cl'),
                 'vs2012':('msvc', 'cl'),
                 'vsc' : ('gcc', 'gcc'),