diff --git a/types/objc/type_encoding.go b/types/objc/type_encoding.go
index 39a9b53..3e64c5c 100644
--- a/types/objc/type_encoding.go
+++ b/types/objc/type_encoding.go
@@ -492,17 +492,27 @@ func skipFirstType(typStr string) string {
 	typ := []byte(typStr)
 	for {
 		switch typ[i] {
+		case '+': /* gnu register */
+			fallthrough
+		case 'A': /* _Atomic */
+			fallthrough
+		case 'N': /* inout */
+			fallthrough
 		case 'O': /* bycopy */
 			fallthrough
+		case 'R': /* byref */
+			fallthrough
+		case 'V': /* oneway */
+			fallthrough
+		case 'j': /* _Complex */
+			fallthrough
 		case 'n': /* in */
 			fallthrough
 		case 'o': /* out */
 			fallthrough
-		case 'N': /* inout */
-			fallthrough
 		case 'r': /* const */
 			fallthrough
-		case 'V': /* oneway */
+		case '|': /* gc invisible */
 			fallthrough
 		case '^': /* pointers */
 			i++
@@ -573,17 +583,27 @@ func CutType(typStr string) (string, string, bool) {
 	typ := []byte(typStr)
 	for {
 		switch typ[i] {
+		case '+': /* gnu register */
+			fallthrough
+		case 'A': /* _Atomic */
+			fallthrough
+		case 'N': /* inout */
+			fallthrough
 		case 'O': /* bycopy */
 			fallthrough
+		case 'R': /* byref */
+			fallthrough
+		case 'V': /* oneway */
+			fallthrough
+		case 'j': /* _Complex */
+			fallthrough
 		case 'n': /* in */
 			fallthrough
 		case 'o': /* out */
 			fallthrough
-		case 'N': /* inout */
-			fallthrough
 		case 'r': /* const */
 			fallthrough
-		case 'V': /* oneway */
+		case '|': /* gc invisible */
 			fallthrough
 		case '^': /* pointers */
 			i++
diff --git a/types/objc/type_encoding_test.go b/types/objc/type_encoding_test.go
index e1443a7..01b94be 100644
--- a/types/objc/type_encoding_test.go
+++ b/types/objc/type_encoding_test.go
@@ -14,9 +14,9 @@ func Test_decodeType(t *testing.T) {
 		{
 			name: "Test all",
 			args: args{
-				encType: "^{OutterStruct=(InnerUnion=q{InnerStruct=ii})b1b2b10b1q[2^v]^![4,8c]}",
+				encType: "^{OutterStruct=(InnerUnion=q{InnerStruct=ii})b1b2b10b1q[2^v]^![4,8c]AQ}",
 			},
-			want: "struct OutterStruct { union InnerUnion { long long x0; struct InnerStruct { int x0; int x1; } x1; } x0; unsigned int x1:1; unsigned int x2:2; unsigned int x3:10; unsigned int x4:1; long long x5; void *x6[2]; signed char *x7 __attribute__((aligned(8), vector_size(4))); } *",
+			want: "struct OutterStruct { union InnerUnion { long long x0; struct InnerStruct { int x0; int x1; } x1; } x0; unsigned int x1:1; unsigned int x2:2; unsigned int x3:10; unsigned int x4:1; long long x5; void *x6[2]; signed char *x7 __attribute__((aligned(8), vector_size(4))); _Atomic unsigned long long x8; } *",
 		},
 		{
 			name: "Test array",
@@ -67,6 +67,13 @@ func Test_decodeType(t *testing.T) {
 			},
 			want: "void * /* struct */",
 		},
+		{
+			name: "Test struct 4",
+			args: args{
+				encType: "{__CFRuntimeBase=QAQ}",
+			},
+			want: "struct __CFRuntimeBase { unsigned long long x0; _Atomic unsigned long long x1; }",
+		},
 		{
 			name: "Test union 0",
 			args: args{