diff --git a/src/htu21d/htu21d.cpp b/src/htu21d/htu21d.cpp
index 3f68d4c7..7f39de87 100644
--- a/src/htu21d/htu21d.cpp
+++ b/src/htu21d/htu21d.cpp
@@ -51,7 +51,7 @@ HTU21D::~HTU21D() {
     mraa_i2c_stop(m_i2ControlCtx);
 }
 
-int
+void
 HTU21D::resetSensor(void)
 {
     uint8_t data;
diff --git a/src/htu21d/htu21d.h b/src/htu21d/htu21d.h
index 6279d7fb..b22eb86a 100644
--- a/src/htu21d/htu21d.h
+++ b/src/htu21d/htu21d.h
@@ -134,7 +134,7 @@ class HTU21D {
          * it is in a known state.  This function can be used to reset
          * the min/max temperature and pressure values.
          */
-        int resetSensor(void);
+        void resetSensor(void);
 
         /**
          * Function intended to test the device and verify it