diff --git a/src/main/target/COLIBRI_RACE/i2c_bst.c b/src/main/target/COLIBRI_RACE/i2c_bst.c
index a8fb36901..4f925001f 100644
--- a/src/main/target/COLIBRI_RACE/i2c_bst.c
+++ b/src/main/target/COLIBRI_RACE/i2c_bst.c
@@ -786,8 +786,8 @@ static void bstMasterWrite16(uint16_t data)
 #ifdef USE_GPS
 static void bstMasterWrite32(uint32_t data)
 {
-    bstMasterWrite16((uint8_t)(data >> 16));
-    bstMasterWrite16((uint8_t)(data >> 0));
+    bstMasterWrite16((uint16_t)(data >> 16));
+    bstMasterWrite16((uint16_t)(data >> 0));
 }
 
 static int32_t lat = 0;