diff --git a/libraries/AP_Airspeed/AP_Airspeed_Backend.cpp b/libraries/AP_Airspeed/AP_Airspeed_Backend.cpp
index 412b337eeb..fc36421419 100644
--- a/libraries/AP_Airspeed/AP_Airspeed_Backend.cpp
+++ b/libraries/AP_Airspeed/AP_Airspeed_Backend.cpp
@@ -58,7 +58,7 @@ uint8_t AP_Airspeed_Backend::get_bus(void) const
     return frontend.param[instance].bus;
 }
 
-bool AP_Airspeed_Backend::bus_is_confgured(void) const
+bool AP_Airspeed_Backend::bus_is_configured(void) const
 {
     return frontend.param[instance].bus.configured();
 }
diff --git a/libraries/AP_Airspeed/AP_Airspeed_Backend.h b/libraries/AP_Airspeed/AP_Airspeed_Backend.h
index 2deeb427c0..58ca025883 100644
--- a/libraries/AP_Airspeed/AP_Airspeed_Backend.h
+++ b/libraries/AP_Airspeed/AP_Airspeed_Backend.h
@@ -59,7 +59,7 @@ protected:
     int8_t get_pin(void) const;
     float get_psi_range(void) const;
     uint8_t get_bus(void) const;
-    bool bus_is_confgured(void) const;
+    bool bus_is_configured(void) const;
     uint8_t get_instance(void) const {
         return instance;
     }
diff --git a/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp b/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp
index d6e4c456a3..ec91bf8b4b 100644
--- a/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp
+++ b/libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp
@@ -62,7 +62,7 @@ bool AP_Airspeed_MS4525::probe(uint8_t bus, uint8_t address)
 bool AP_Airspeed_MS4525::init()
 {
     static const uint8_t addresses[] = { MS4525D0_I2C_ADDR1, MS4525D0_I2C_ADDR2, MS4525D0_I2C_ADDR3 };
-    if (bus_is_confgured()) {
+    if (bus_is_configured()) {
         // the user has configured a specific bus
         for (uint8_t addr : addresses) {
             if (probe(get_bus(), addr)) {