diff --git a/src/saul.rs b/src/saul.rs
index 951b72f6..4a592421 100644
--- a/src/saul.rs
+++ b/src/saul.rs
@@ -416,13 +416,13 @@ impl Unit {
             riot_sys::UNIT_M => Some(Unit::M),
             riot_sys::UNIT_M2 => Some(Unit::M2),
             riot_sys::UNIT_M3 => Some(Unit::M3),
-            riot_sys::UNIT_G => Some(Unit::GForce),
+            riot_sys::UNIT_G_FORCE => Some(Unit::GForce),
             riot_sys::UNIT_DPS => Some(Unit::Dps),
-            riot_sys::UNIT_GR => Some(Unit::Gram),
+            riot_sys::UNIT_GRAM => Some(Unit::Gram),
             riot_sys::UNIT_A => Some(Unit::A),
             riot_sys::UNIT_V => Some(Unit::V),
             riot_sys::UNIT_W => Some(Unit::W),
-            riot_sys::UNIT_GS => Some(Unit::Gauss),
+            riot_sys::UNIT_GAUSS => Some(Unit::Gauss),
             riot_sys::UNIT_T => Some(Unit::T),
             riot_sys::UNIT_DBM => Some(Unit::Dbm),
             riot_sys::UNIT_COULOMB => Some(Unit::Coulomb),
@@ -456,13 +456,13 @@ impl Unit {
             Some(Unit::M) => riot_sys::UNIT_M,
             Some(Unit::M2) => riot_sys::UNIT_M2,
             Some(Unit::M3) => riot_sys::UNIT_M3,
-            Some(Unit::GForce) => riot_sys::UNIT_G,
+            Some(Unit::GForce) => riot_sys::UNIT_G_FORCE,
             Some(Unit::Dps) => riot_sys::UNIT_DPS,
-            Some(Unit::Gram) => riot_sys::UNIT_GR,
+            Some(Unit::Gram) => riot_sys::UNIT_GRAM,
             Some(Unit::A) => riot_sys::UNIT_A,
             Some(Unit::V) => riot_sys::UNIT_V,
             Some(Unit::W) => riot_sys::UNIT_W,
-            Some(Unit::Gauss) => riot_sys::UNIT_GS,
+            Some(Unit::Gauss) => riot_sys::UNIT_GAUSS,
             Some(Unit::T) => riot_sys::UNIT_T,
             Some(Unit::Dbm) => riot_sys::UNIT_DBM,
             Some(Unit::Coulomb) => riot_sys::UNIT_COULOMB,