diff --git a/uctest/msg.c b/uctest/msg.c
index d89ef020..cd42fd9b 100644
--- a/uctest/msg.c
+++ b/uctest/msg.c
@@ -816,7 +816,7 @@ Test(MessageTest, MethodFindTimeSrc)
     cr_expect(m->findTimeSrc("Other", &t, false));
     cr_expect(eq(int, t, PTPMGMT_OTHER));
     m->free(m);
-    // Confirm compatability
+    // Confirm compatibility
     cr_expect(eq(int, PTPMGMT_GPS, PTPMGMT_GNSS));
 }
 
@@ -915,7 +915,7 @@ Test(MessageTest, MethodFindPortState)
     cr_assert(not(zero(ptr, m)));
     cr_expect(m->findPortState("Slave", &s, false));
     m->free(m);
-    // Confirm compatability
+    // Confirm compatibility
     cr_expect(eq(int, PTPMGMT_PRE_MASTER, PTPMGMT_PRE_TIME_TRANSMITTER));
     cr_expect(eq(int, PTPMGMT_MASTER, PTPMGMT_TIME_TRANSMITTER));
     cr_expect(eq(int, PTPMGMT_SLAVE, PTPMGMT_TIME_RECEIVER));
diff --git a/utest/msg.cpp b/utest/msg.cpp
index cee75ef4..6384d469 100644
--- a/utest/msg.cpp
+++ b/utest/msg.cpp
@@ -366,7 +366,7 @@ TEST(MessageTest, MethodMng2str)
     EXPECT_STREQ(Message::mng2str_c(EXTERNAL_GRANDMASTER_PROPERTIES_NP),
         "EXTERNAL_GRANDMASTER_PROPERTIES_NP");
     EXPECT_STREQ(Message::mng2str_c(LAST_MNG_ID), "unknown");
-    // Confirm compatability
+    // Confirm compatibility
     EXPECT_EQ(FIRST_MNG_ID, NULL_PTP_MANAGEMENT);
     EXPECT_EQ(NULL_MANAGEMENT, NULL_PTP_MANAGEMENT);
 }
@@ -546,7 +546,7 @@ TEST(MessageTest, MethodFindTimeSrc)
     EXPECT_EQ(t, INTERNAL_OSCILLATOR);
     EXPECT_TRUE(Message::findTimeSrc("Intern", t, false));
     EXPECT_EQ(t, INTERNAL_OSCILLATOR);
-    // Confirm compatability
+    // Confirm compatibility
     EXPECT_EQ(GPS, GNSS);
 }
 
@@ -623,7 +623,7 @@ TEST(MessageTest, MethodFindPortState)
     EXPECT_EQ(s, TIME_RECEIVER);
     EXPECT_TRUE(Message::findPortState("Time_Receiver", s, false));
     EXPECT_EQ(s, TIME_RECEIVER);
-    // Confirm compatability
+    // Confirm compatibility
     EXPECT_EQ(PRE_MASTER, PRE_TIME_TRANSMITTER);
     EXPECT_EQ(MASTER, TIME_TRANSMITTER);
     EXPECT_EQ(SLAVE, TIME_RECEIVER);