diff --git a/NEWS b/NEWS
index 6dffb0cc847..2ae38ccd459 100644
--- a/NEWS
+++ b/NEWS
@@ -53,6 +53,8 @@ PHP                                                                        NEWS
     evaluation) and GH-18464 (Recursion protection for deprecation constants not
     released on bailout). (DanielEScherzer and ilutov)
   . Fixed AST printing for immediately invoked Closure. (Dmitrii Derepko)
+  . Fixed GH-18695 (zend_ast_export() - float number is not preserved).
+    (Oleg Efimov)
 
 - Curl:
   . Added curl_multi_get_handles(). (timwolla)
diff --git a/Zend/tests/ast/ast_serialize_floats.phpt b/Zend/tests/ast/ast_serialize_floats.phpt
new file mode 100644
index 00000000000..164b8b03338
--- /dev/null
+++ b/Zend/tests/ast/ast_serialize_floats.phpt
@@ -0,0 +1,26 @@
+--TEST--
+Serialization of floats are correct
+--INI--
+zend.assertions=1
+--FILE--
+<?php
+try {
+    assert(!is_float(0.0));
+} catch (AssertionError $e) {
+    echo 'assert(): ', $e->getMessage(), ' failed', PHP_EOL;
+}
+try {
+    assert(!is_float(1.1));
+} catch (AssertionError $e) {
+    echo 'assert(): ', $e->getMessage(), ' failed', PHP_EOL;
+}
+try {
+    assert(!is_float(1234.5678));
+} catch (AssertionError $e) {
+    echo 'assert(): ', $e->getMessage(), ' failed', PHP_EOL;
+}
+?>
+--EXPECT--
+assert(): assert(!is_float(0.0)) failed
+assert(): assert(!is_float(1.1)) failed
+assert(): assert(!is_float(1234.5678)) failed
diff --git a/Zend/zend_ast.c b/Zend/zend_ast.c
index 26a0cbd16ca..533ba5f820b 100644
--- a/Zend/zend_ast.c
+++ b/Zend/zend_ast.c
@@ -1820,7 +1820,7 @@ static ZEND_COLD void zend_ast_export_zval(smart_str *str, zval *zv, int priorit
 			break;
 		case IS_DOUBLE:
 			smart_str_append_double(
-				str, Z_DVAL_P(zv), (int) EG(precision), /* zero_fraction */ false);
+				str, Z_DVAL_P(zv), (int) EG(precision), /* zero_fraction */ true);
 			break;
 		case IS_STRING:
 			smart_str_appendc(str, '\'');