diff --git a/include/pocketpy/common/str.h b/include/pocketpy/common/str.h
index 028beec4..7452a359 100644
--- a/include/pocketpy/common/str.h
+++ b/include/pocketpy/common/str.h
@@ -27,7 +27,7 @@ c11_string* c11_string__new2(const char* data, int size);
 c11_string* c11_string__copy(c11_string* self);
 void c11_string__delete(c11_string* self);
 int c11_string__len(c11_string* self);
-c11_sv c11_string__view(c11_string* self);
+c11_sv c11_string__sv(c11_string* self);
 c11_string* c11_string__replace(c11_string* self, char old, char new_);
 
 int c11_string__u8_length(const c11_string* self);
diff --git a/src/common/str.c b/src/common/str.c
index 36ae1fa1..58f90b72 100644
--- a/src/common/str.c
+++ b/src/common/str.c
@@ -36,7 +36,7 @@ int c11_string__len(c11_string* self) {
     return *p;
 }
 
-c11_sv c11_string__view(c11_string* self) {
+c11_sv c11_string__sv(c11_string* self) {
     int* p = (int*)self - 1;
     return (c11_sv){self, *p};
 }
@@ -59,7 +59,7 @@ int c11_string__u8_length(c11_string* self) {
 c11_sv c11_string__u8_getitem(c11_string* self, int i) {
     i = c11__unicode_index_to_byte(self, i);
     int size = c11__u8_header(self[i], false);
-    return c11_sv__slice2(c11_string__view(self), i, i + size);
+    return c11_sv__slice2(c11_string__sv(self), i, i + size);
 }
 
 c11_string* c11_string__u8_slice(c11_string* self, int start, int stop, int step) {
diff --git a/src/compiler/compiler.c b/src/compiler/compiler.c
index afbc80a9..eec27067 100644
--- a/src/compiler/compiler.c
+++ b/src/compiler/compiler.c
@@ -289,7 +289,7 @@ void LiteralExpr__emit_(Expr* self_, Ctx* ctx) {
             break;
         }
         case TokenValue_STR: {
-            c11_sv sv = c11_string__view(self->value->_str);
+            c11_sv sv = c11_string__sv(self->value->_str);
             int index = Ctx__add_const_string(ctx, sv);
             Ctx__emit_(ctx, OP_LOAD_CONST, index, self->line);
             break;
@@ -1354,7 +1354,7 @@ int Ctx__add_const_string(Ctx* self, c11_sv key) {
         c11_vector__push(py_TValue, &self->co->consts, tmp);
         int index = self->co->consts.count - 1;
         c11_smallmap_s2n__set(&self->co_consts_string_dedup_map,
-                              c11_string__view(PyObject__value(tmp._obj)),
+                              c11_string__sv(PyObject__value(tmp._obj)),
                               index);
         return index;
     }
@@ -1665,13 +1665,13 @@ static Error* exprLong(Compiler* self) {
 }
 
 static Error* exprBytes(Compiler* self) {
-    c11_sv sv = c11_string__view(prev()->value._str);
+    c11_sv sv = c11_string__sv(prev()->value._str);
     Ctx__s_push(ctx(), (Expr*)RawStringExpr__new(prev()->line, sv, OP_BUILD_BYTES));
     return NULL;
 }
 
 static Error* exprFString(Compiler* self) {
-    c11_sv sv = c11_string__view(prev()->value._str);
+    c11_sv sv = c11_string__sv(prev()->value._str);
     Ctx__s_push(ctx(), (Expr*)FStringExpr__new(prev()->line, sv));
     return NULL;
 }
@@ -2064,7 +2064,7 @@ Error* pk_compile(pk_SourceData_ src, CodeObject* out) {
 
     Compiler compiler;
     Compiler__ctor(&compiler, src, tokens);
-    CodeObject__ctor(out, src, c11_string__view(src->filename));
+    CodeObject__ctor(out, src, c11_string__sv(src->filename));
     err = Compiler__compile(&compiler, out);
     if(err) {
         // if error occurs, dispose the code object
diff --git a/src/compiler/lexer.c b/src/compiler/lexer.c
index 546be760..d6a2188d 100644
--- a/src/compiler/lexer.c
+++ b/src/compiler/lexer.c
@@ -821,7 +821,7 @@ Error* pk_Lexer__process_and_dump(pk_SourceData_ src, c11_string** out) {
                 break;
             case TokenValue_STR: {
                 pk_SStream__write_char(&ss, 'S');
-                c11_sv sv = c11_string__view(token->value._str);
+                c11_sv sv = c11_string__sv(token->value._str);
                 for(int i=0; i<sv.size; i++){
                     pk_SStream__write_hex(&ss, sv.data[i], false);
                 }