diff --git a/ext/intl/common/common_date.cpp b/ext/intl/common/common_date.cpp
index e4f442a8195..e27a67ec55a 100644
--- a/ext/intl/common/common_date.cpp
+++ b/ext/intl/common/common_date.cpp
@@ -124,6 +124,7 @@ U_CFUNC zend_result intl_datetime_decompose(zend_object *obj, double *millis, Ti
 		}
 		// TODO: Remove this when DateTimeInterface::getTimestamp() no longer has a tentative return type
 		if (Z_TYPE(retval) != IS_LONG) {
+			zval_ptr_dtor(&retval);
 			spprintf(&message, 0, "%s: %s::getTimestamp() did not return an int", func, ZSTR_VAL(obj->ce->name));
 			intl_errors_set(err, U_INTERNAL_PROGRAM_ERROR, message, 1);
 			efree(message);