diff --git a/tools/toolchains/__init__.py b/tools/toolchains/__init__.py
index 849665861e..6438a76221 100644
--- a/tools/toolchains/__init__.py
+++ b/tools/toolchains/__init__.py
@@ -760,6 +760,7 @@ class mbedToolchain:
                     'chroot': self.CHROOT
                 })
             else:
+                self.compiled += 1
                 objects.append(object)
 
         # Use queues/multiprocessing if cpu count is higher than setting