diff --git a/test/dbus_passive_unittest.cpp b/test/dbus_passive_unittest.cpp
index f37addf..bee64c7 100644
--- a/test/dbus_passive_unittest.cpp
+++ b/test/dbus_passive_unittest.cpp
@@ -453,7 +453,7 @@
 
 TEST_F(DbusPassiveTestObj, VerifyAvailableDeassert)
 {
-    // Verifies when Availble is deasserted && unavailableAsFailed == true,
+    // Verifies when Available is deasserted && unavailableAsFailed == true,
     // the sensor goes into error state
     EXPECT_CALL(sdbus_mock, sd_bus_message_ref(IsNull()))
         .WillOnce(Return(nullptr));
@@ -530,7 +530,7 @@
 
 TEST_F(DbusPassiveTestObj, VerifyAvailableAssert)
 {
-    // Verifies when Availble is asserted && unavailableAsFailed == true,
+    // Verifies when Available is asserted && unavailableAsFailed == true,
     // an error sensor goes back to normal state
     EXPECT_CALL(sdbus_mock, sd_bus_message_ref(IsNull()))
         .WillOnce(Return(nullptr));
@@ -655,7 +655,7 @@
 
 TEST_F(DbusPassiveTestUnaSensorNotAsFailedObj, VerifyAvailableDeassert)
 {
-    // Verifies when Availble is deasserted && unavailableAsFailed == false,
+    // Verifies when Available is deasserted && unavailableAsFailed == false,
     // the sensor remains at OK state but reading goes to NaN.
     EXPECT_CALL(sdbus_mock, sd_bus_message_ref(IsNull()))
         .WillOnce(Return(nullptr));
@@ -734,7 +734,7 @@
 
 TEST_F(DbusPassiveTestUnaSensorNotAsFailedObj, VerifyAvailableAssert)
 {
-    // Verifies when a sensor's state goes from unavailble to available
+    // Verifies when a sensor's state goes from unavailable to available
     // && unavailableAsFailed == false, this sensor remains at OK state.
     EXPECT_CALL(sdbus_mock, sd_bus_message_ref(IsNull()))
         .WillOnce(Return(nullptr));