diff --git a/phosphor-regulators/test/actions/i2c_compare_bit_action_tests.cpp b/phosphor-regulators/test/actions/i2c_compare_bit_action_tests.cpp
index 818c800..08f48bf 100644
--- a/phosphor-regulators/test/actions/i2c_compare_bit_action_tests.cpp
+++ b/phosphor-regulators/test/actions/i2c_compare_bit_action_tests.cpp
@@ -92,7 +92,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).WillRepeatedly(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0x7C, A<uint8_t&>()))
             .WillRepeatedly(SetArgReferee<1>(0x96));
 
         // Create Device, IDMap, and ActionEnvironment
@@ -168,7 +168,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0x7C, A<uint8_t&>()))
             .Times(1)
             .WillOnce(Throw(
                 i2c::I2CException{"Failed to read byte", "/dev/i2c-1", 0x70}));
diff --git a/phosphor-regulators/test/actions/i2c_compare_byte_action_tests.cpp b/phosphor-regulators/test/actions/i2c_compare_byte_action_tests.cpp
index b721898..436d987 100644
--- a/phosphor-regulators/test/actions/i2c_compare_byte_action_tests.cpp
+++ b/phosphor-regulators/test/actions/i2c_compare_byte_action_tests.cpp
@@ -65,7 +65,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0xA0, A<uint8_t&>()))
             .Times(1)
             .WillOnce(SetArgReferee<1>(0xD7));
 
@@ -94,7 +94,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0xA0, A<uint8_t&>()))
             .Times(1)
             .WillOnce(SetArgReferee<1>(0xD7));
 
@@ -120,7 +120,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0xA0, A<uint8_t&>()))
             .Times(1)
             .WillOnce(SetArgReferee<1>(0xD7));
 
@@ -149,7 +149,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0xA0, A<uint8_t&>()))
             .Times(1)
             .WillOnce(SetArgReferee<1>(0xD7));
 
@@ -195,7 +195,7 @@
         std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
             std::make_unique<i2c::MockedI2CInterface>();
         EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
-        EXPECT_CALL(*i2cInterface, read(A<uint8_t>(), A<uint8_t&>()))
+        EXPECT_CALL(*i2cInterface, read(0xA0, A<uint8_t&>()))
             .Times(1)
             .WillOnce(Throw(
                 i2c::I2CException{"Failed to read byte", "/dev/i2c-1", 0x70}));