diff --git a/command_test.go b/command_test.go
index d6e40c9a27..3aa2a45996 100644
--- a/command_test.go
+++ b/command_test.go
@@ -538,7 +538,8 @@ func TestCommand_PreservesSeparatorOnSubcommands(t *testing.T) {
 		SliceFlagSeparator: ";",
 	}
 
-	app.Run([]string{"app", "foo", "bar", "--my-flag", "1;2;3"})
+	err := app.Run([]string{"app", "foo", "bar", "--my-flag", "1;2;3"})
+	expect(t, err, nil)
 
 	expect(t, values, []string{"1", "2", "3"})
 }
diff --git a/flag_test.go b/flag_test.go
index 32259c547a..4971de624f 100644
--- a/flag_test.go
+++ b/flag_test.go
@@ -126,7 +126,8 @@ func TestBoolFlagCountFromContext(t *testing.T) {
 			},
 		}
 
-		app.Run(bct.input)
+		err := app.Run(bct.input)
+		expect(t, err, nil)
 
 	}
 }
diff --git a/help_test.go b/help_test.go
index 1188f85e2d..80b38ac1d9 100644
--- a/help_test.go
+++ b/help_test.go
@@ -1330,7 +1330,7 @@ func TestDefaultCompleteWithFlags(t *testing.T) {
 			tc.a.HideHelp = true
 			tc.a.Writer = writer
 			os.Args = tc.argv
-			tc.a.Run(tc.argv)
+			_ = tc.a.Run(tc.argv)
 
 			written := writer.String()