diff --git a/examples/stm32f4/Cargo.toml b/examples/stm32f4/Cargo.toml
index 0efc751f..c53f04e1 100644
--- a/examples/stm32f4/Cargo.toml
+++ b/examples/stm32f4/Cargo.toml
@@ -23,6 +23,3 @@ nb = "1.0.0"
 
 usb-device = "0.2"
 usbd-serial = "0.1.1"
-
-[profile.release]
-debug = 2
\ No newline at end of file