diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c12f5756..a416d5e7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -95,7 +95,7 @@ jobs:
         run: |
           phpize
 
-          if [ "${{ matrix.ccov}}" = "ON" ]; then
+          if [ "${{ matrix.ccov }}" = "ON" ]; then
             ./configure \
               --enable-zephir-parser \
               --enable-zephir-parser-debug \
diff --git a/parser/base.c b/parser/base.c
index 70907ad9..19b87db9 100644
--- a/parser/base.c
+++ b/parser/base.c
@@ -178,6 +178,9 @@ void xx_parse_program(zval *return_value, char *program, size_t program_length,
 			case XX_T_RETURN:
 				xx_(xx_parser, XX_RETURN, NULL, parser_status);
 				break;
+			case XX_T_REQUIRE_ONCE:
+				xx_(xx_parser, XX_REQUIRE_ONCE, NULL, parser_status);
+				break;
 			case XX_T_REQUIRE:
 				xx_(xx_parser, XX_REQUIRE, NULL, parser_status);
 				break;
diff --git a/parser/parser.h b/parser/parser.h
index 96f4ee68..1240979d 100644
--- a/parser/parser.h
+++ b/parser/parser.h
@@ -33,6 +33,7 @@ static int is_empty(const char *program)
 static void parser_add_str(zval *arr, const char *key, const char *val) {
 	zval tmp;
 	zend_string *tmp_str;
+
 	if (!strcmp(val, "return_value")) {
 		tmp_str = zend_string_init("_zephir_return_value", strlen("_zephir_return_value"), 0);
 	} else if (!strcmp(val, "this_ptr")) {
@@ -40,6 +41,7 @@ static void parser_add_str(zval *arr, const char *key, const char *val) {
 	} else {
 		tmp_str = zend_string_init(val, strlen(val), 0);
 	}
+
 	ZVAL_STR(&tmp, tmp_str);
 	zend_hash_str_add(Z_ARRVAL_P(arr), key, strlen(key), &tmp);
 }
@@ -894,6 +896,18 @@ static void xx_ret_return_statement(zval *ret, zval *expr, xx_scanner_state *sta
 	parser_add_int(ret, "char", state->active_char);
 }
 
+static void xx_ret_require_once_statement(zval *ret, zval *expr, xx_scanner_state *state)
+{
+	array_init(ret);
+
+	parser_add_str(ret, "type", "require_once");
+	parser_add_zval(ret, "expr", expr);
+
+	parser_add_str(ret, "file", state->active_file);
+	parser_add_int(ret, "line", state->active_line);
+	parser_add_int(ret, "char", state->active_char);
+}
+
 static void xx_ret_require_statement(zval *ret, zval *expr, xx_scanner_state *state)
 {
 	array_init(ret);
@@ -1046,7 +1060,7 @@ static void xx_ret_declare_variable(zval *ret, xx_parser_token *T, zval *expr, x
 	array_init(ret);
 
 	parser_add_str_free(ret, "variable", T->token);
-	
+
 	efree(T);
 
 	if (expr) {
diff --git a/parser/scanner.h b/parser/scanner.h
index 9f1b1222..104e8400 100644
--- a/parser/scanner.h
+++ b/parser/scanner.h
@@ -97,6 +97,7 @@
 #define XX_T_TRY 397
 #define XX_T_CATCH 398
 #define XX_T_DEPRECATED 399
+#define XX_T_REQUIRE_ONCE 459
 
 /* Operators */
 #define XX_T_AT '@'
diff --git a/parser/scanner.re b/parser/scanner.re
index bc8125f1..88b11a05 100644
--- a/parser/scanner.re
+++ b/parser/scanner.re
@@ -24,13 +24,11 @@
 #define YYMARKER (s->marker)
 
 int xx_get_token(xx_scanner_state *s, xx_scanner_token *token) {
-
 	char *start = YYCURSOR;
 	int status = XX_SCANNER_RETCODE_IMPOSSIBLE;
 	int is_constant = 0, j;
 
 	while (XX_SCANNER_RETCODE_IMPOSSIBLE == status) {
-
 		/*!re2c
 		re2c:indent:top = 2;
 		re2c:yyfill:enable = 0;
@@ -353,6 +351,12 @@ int xx_get_token(xx_scanner_state *s, xx_scanner_token *token) {
 			return 0;
 		}
 
+		'require_once' {
+			s->active_char += sizeof("require_once")-1;
+			token->opcode = XX_T_REQUIRE_ONCE;
+			return 0;
+		}
+
 		'require' {
 			s->active_char += sizeof("require")-1;
 			token->opcode = XX_T_REQUIRE;
diff --git a/parser/zephir.lemon b/parser/zephir.lemon
index e6f6d082..5abbddc1 100644
--- a/parser/zephir.lemon
+++ b/parser/zephir.lemon
@@ -37,8 +37,10 @@
 //
 // The token values assigned to these symbols is determined by the order
 // in which lemon first sees them.
+
 %left INTERNAL PUBLIC PROTECTED STATIC PRIVATE SCOPED .
 %left COMMA .
+%right REQUIRE_ONCE .
 %right REQUIRE .
 %right DOUBLEARROW .
 %right QUESTION .
@@ -980,6 +982,10 @@ xx_statement(R) ::= xx_return_statement(S) . {
 	R = S;
 }
 
+xx_statement(R) ::= xx_require_once_statement(S) . {
+	R = S;
+}
+
 xx_statement(R) ::= xx_require_statement(S) . {
 	R = S;
 }
@@ -1526,6 +1532,11 @@ xx_return_statement(R) ::= RETURN DOTCOMMA . {
 	xx_ret_return_statement(&R, NULL, status->scanner_state);
 }
 
+/* require_once statement */
+xx_require_once_statement(R) ::= REQUIRE_ONCE xx_common_expr(E) DOTCOMMA . {
+	xx_ret_require_once_statement(&R, &E, status->scanner_state);
+}
+
 /* require statement */
 xx_require_statement(R) ::= REQUIRE xx_common_expr(E) DOTCOMMA . {
 	xx_ret_require_statement(&R, &E, status->scanner_state);
@@ -1630,6 +1641,10 @@ xx_common_expr(R) ::= ISSET xx_common_expr(O1) . {
 	xx_ret_expr(&R, "isset", &O1, NULL, NULL, status->scanner_state);
 }
 
+xx_common_expr(R) ::= REQUIRE_ONCE xx_common_expr(O1) . {
+	xx_ret_expr(&R, "require_once", &O1, NULL, NULL, status->scanner_state);
+}
+
 xx_common_expr(R) ::= REQUIRE xx_common_expr(O1) . {
 	xx_ret_expr(&R, "require", &O1, NULL, NULL, status->scanner_state);
 }
diff --git a/tests/statements/require_once.phpt b/tests/statements/require_once.phpt
new file mode 100644
index 00000000..d0a1c959
--- /dev/null
+++ b/tests/statements/require_once.phpt
@@ -0,0 +1,39 @@
+--TEST--
+require_once statement
+--SKIPIF--
+<?php include(__DIR__ . '/../skipif.inc'); ?>
+--FILE--
+<?php
+$code =<<<ZEP
+function test() {
+	require_once foo;
+}
+ZEP;
+
+$ir = zephir_parse_file($code, '(eval code)');
+var_dump($ir[0]["statements"][0]);
+?>
+--EXPECT--
+array(5) {
+  ["type"]=>
+  string(12) "require_once"
+  ["expr"]=>
+  array(5) {
+    ["type"]=>
+    string(8) "variable"
+    ["value"]=>
+    string(3) "foo"
+    ["file"]=>
+    string(11) "(eval code)"
+    ["line"]=>
+    int(2)
+    ["char"]=>
+    int(18)
+  }
+  ["file"]=>
+  string(11) "(eval code)"
+  ["line"]=>
+  int(3)
+  ["char"]=>
+  int(1)
+}