diff --git a/mops.toml b/mops.toml
index 03636bc..0c93038 100644
--- a/mops.toml
+++ b/mops.toml
@@ -3,7 +3,7 @@ name = "test"
 version = "1.0.1"
 description = "Motoko testing library to run tests with mops"
 repository = "https://github.com/ZenVoich/test"
-keywords = [ "test", "mops", "testing", "unit", "suite" ]
+keywords = [ "test", "testing", "unit", "suite", "expect", "matchers", "mops" ]
 license = "MIT"
 
 [dependencies]
diff --git a/src/expect/lib.mo b/src/expect/lib.mo
index 73771fe..9471544 100644
--- a/src/expect/lib.mo
+++ b/src/expect/lib.mo
@@ -44,15 +44,15 @@ module {
 	public let expect = {
 		bool = ExpectBool.ExpectBool;
 		int = ExpectInt.ExpectInt;
-		int8 = func(val : Int8) : ExpectInt8.ExpectInt8 = ExpectInt8.ExpectInt8(val);
-		int16 = func(val : Int16) : ExpectInt16.ExpectInt16 = ExpectInt16.ExpectInt16(val);
-		int32 = func(val : Int32) : ExpectInt32.ExpectInt32 = ExpectInt32.ExpectInt32(val);
-		int64 = func(val : Int64) : ExpectInt64.ExpectInt64 = ExpectInt64.ExpectInt64(val);
-		nat = func(val : Nat) : ExpectNat.ExpectNat = ExpectNat.ExpectNat(val);
-		nat8 = func(val : Nat8) : ExpectNat8.ExpectNat8 = ExpectNat8.ExpectNat8(val);
-		nat16 = func(val : Nat16) : ExpectNat16.ExpectNat16 = ExpectNat16.ExpectNat16(val);
-		nat32 = func(val : Nat32) : ExpectNat32.ExpectNat32 = ExpectNat32.ExpectNat32(val);
-		nat64 = func(val : Nat64) : ExpectNat64.ExpectNat64 = ExpectNat64.ExpectNat64(val);
+		int8 = ExpectInt8.ExpectInt8;
+		int16 = ExpectInt16.ExpectInt16;
+		int32 = ExpectInt32.ExpectInt32;
+		int64 = ExpectInt64.ExpectInt64;
+		nat = ExpectNat.ExpectNat;
+		nat8 = ExpectNat8.ExpectNat8;
+		nat16 = ExpectNat16.ExpectNat16;
+		nat32 = ExpectNat32.ExpectNat32;
+		nat64 = ExpectNat64.ExpectNat64;
 		char = ExpectChar.ExpectChar;
 		text = ExpectText.ExpectText;
 		array = ExpectArray.ExpectArray;
diff --git a/test/expect.test.mo b/test/expect.test.mo
index 03a89bb..c3af535 100644
--- a/test/expect.test.mo
+++ b/test/expect.test.mo
@@ -108,6 +108,7 @@ test("blob", func() {
 
 test("principal", func() {
 	expect.principal(Principal.fromBlob(Blob.fromArray([1,2,3,4]))).equal(Principal.fromBlob(Blob.fromArray([1,2,3,4])));
+	expect.principal(Principal.fromBlob(Blob.fromArray([1,2,3,4]))).notEqual(Principal.fromBlob(Blob.fromArray([1,2,3,5])));
 	expect.principal(Principal.fromBlob("\04")).isAnonymous();
 	expect.principal(Principal.fromBlob(Blob.fromArray([4]))).isAnonymous();
 });