diff --git a/tools/projmgr/templates/cdefault.yml b/tools/projmgr/templates/cdefault.yml
index 13cd1b0f2..06f08d205 100644
--- a/tools/projmgr/templates/cdefault.yml
+++ b/tools/projmgr/templates/cdefault.yml
@@ -45,4 +45,5 @@ default:
 
     - for-compiler: IAR
       C-CPP: 
+        - -e
         - --dlib_config DLib_Config_Full.h