diff --git a/releasenotes.md b/releasenotes.md
index 0dd9bf52a..218d79710 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -63,6 +63,7 @@
 - Fix Vec2.angle
 - Update to libc::setjmp on Win32, to do no stack unwinding.
 - Recursively follow interfaces when looking up method.
+- Int128 alignment fixed on x64 Linux.
 
 ### Stdlib changes
 
diff --git a/src/compiler/target.c b/src/compiler/target.c
index 687f7d001..7a9248207 100644
--- a/src/compiler/target.c
+++ b/src/compiler/target.c
@@ -1546,20 +1546,21 @@ static AlignData os_target_alignment_of_int(OsType os, ArchType arch, uint32_t b
 		case ARCH_TYPE_PPC64:
 		case ARCH_TYPE_PPC:
 		case ARCH_TYPE_PPC64LE:
-		case ARCH_TYPE_X86_64:
 		case ARCH_TYPE_WASM64:
 		case ARCH_TYPE_RISCV32:
 		case ARCH_TYPE_WASM32:
 		case ARCH_TYPE_XTENSA:
 			return (AlignData) { MIN(64u, bits), MIN(64u, bits) };
+		case ARCH_TYPE_X86_64:
 		case ARCH_TYPE_RISCV64:
 			return (AlignData) { bits, bits };
 		case ARCH_TYPE_AARCH64:
 		case ARCH_TYPE_AARCH64_BE:
-			if (bits < 32 && !os_is_apple(os) && os != OS_TYPE_WIN32) return (AlignData){ bits, 32 };
+			if (bits < 32) return (AlignData){ bits, 32 };
 			return (AlignData) { bits, bits };
 		case ARCH_TYPE_X86:
-			if (bits < 32) return (AlignData) { bits, bits };
+			if (bits <= 32) return (AlignData) { bits, bits };
+			if (bits == 128) return (AlignData) { 128, 128 };
 			if (os == OS_TYPE_ELFIAMCU) return (AlignData) { 32, 32 };
 			if (os == OS_TYPE_WIN32 || os == OS_TYPE_NACL) return (AlignData) { 64, 64 };
 			return (AlignData) { 32, 64 };
diff --git a/test/test_suite/dynamic/dynamic_inherit_deep.c3t b/test/test_suite/dynamic/dynamic_inherit_deep.c3t
new file mode 100644
index 000000000..7c2890401
--- /dev/null
+++ b/test/test_suite/dynamic/dynamic_inherit_deep.c3t
@@ -0,0 +1,18 @@
+module abc;
+interface AstNode {
+    fn void free();
+    fn double get_span();
+    fn void dump(int depth);
+}
+
+interface AstBodyStatement : AstNode {
+}
+
+interface AstExpression : /* AstNode,*/ AstBodyStatement {
+}
+
+fn void main()
+{
+	AstExpression a = null;
+	a.dump(100);
+}
\ No newline at end of file
diff --git a/test/test_suite/literals/bin_literal2.c3t b/test/test_suite/literals/bin_literal2.c3t
index 0f1738495..fb0f086c7 100644
--- a/test/test_suite/literals/bin_literal2.c3t
+++ b/test/test_suite/literals/bin_literal2.c3t
@@ -26,5 +26,5 @@ const int128 I128 = 0b0100_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_000
 @test.I = local_unnamed_addr constant i32 1073741824, align 4
 @test.UL = local_unnamed_addr constant i64 -9223372036854775808, align 8
 @test.L = local_unnamed_addr constant i64 4611686018427387904, align 8
-@test.UI128 = local_unnamed_addr constant i128 -170141183460469231731687303715884105728, align 8
-@test.I128 = local_unnamed_addr constant i128 85070591730234615865843651857942052864, align 8
+@test.UI128 = local_unnamed_addr constant i128 -170141183460469231731687303715884105728, align 16
+@test.I128 = local_unnamed_addr constant i128 85070591730234615865843651857942052864, align 16
\ No newline at end of file