diff --git a/internal/backends/mcu/Cargo.toml b/internal/backends/mcu/Cargo.toml
index ec47f7f515b..913d0356062 100644
--- a/internal/backends/mcu/Cargo.toml
+++ b/internal/backends/mcu/Cargo.toml
@@ -18,7 +18,7 @@ path = "lib.rs"
 [features]
 simulator = ["winit", "glutin", "femtovg", "embedded-graphics-simulator", "std", "imgref", "scoped-tls-hkt"]
 
-pico-st7789 = ["unsafe_single_core", "rp-pico", "embedded-hal", "cortex-m-rt", "alloc-cortex-m", "embedded-time", "cortex-m", "display-interface-spi", "st7789", "defmt", "defmt-rtt",  "i-slint-core/defmt", "shared-bus" ]
+pico-st7789 = ["unsafe_single_core", "rp-pico", "embedded-hal", "cortex-m-rt", "alloc-cortex-m", "embedded-time", "cortex-m", "display-interface-spi", "st7789", "defmt", "defmt-rtt",  "i-slint-core/defmt", "shared-bus", "i-slint-core/libm" ]
 
 unsafe_single_core = ["i-slint-core/unsafe_single_core"]