diff --git a/.cargo/config b/.cargo/config
index 2b26448..61f32b3 100644
--- a/.cargo/config
+++ b/.cargo/config
@@ -1,7 +1,7 @@
 [target.armv7-none-eabihf]
 rustflags = [
   "-C", "link-arg=-Tlink.x",
-  "-C", "target-feature=a9,armv7-a,neon",
+  "-C", "target-feature=+a9,+armv7-a,+neon",
   "-C", "target-cpu=cortex-a9",
 ]