diff --git a/Cargo.toml b/Cargo.toml
index c7f5c61..593f9ac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "ki18n"
 description = "A crate to use KF5I18n from rust."
 author = ["Ayush Singh <ayushdevel1325@gmail.com>"]
-version = "2.0.0"
+version = "2.0.1"
 edition = "2021"
 links = "KF5I18n"
 license = "MIT"
diff --git a/src/klocalizedcontext.rs b/src/klocalizedcontext.rs
index 3aaa8f0..6e0865b 100644
--- a/src/klocalizedcontext.rs
+++ b/src/klocalizedcontext.rs
@@ -46,7 +46,7 @@ impl KLocalizedContext {
 
     /// Returns a pointer to the C++ object. The pointer is of the type `KLocalizedContext *` in C++.
     pub fn cpp_ptr(&self) -> *mut c_void {
-        cpp!(unsafe [self as "KLocalizedContextHolder *"] -> *mut c_void as "KLocalizedContext *" {
+        cpp!(unsafe [self as "const KLocalizedContextHolder *"] -> *mut c_void as "KLocalizedContext *" {
             return self->klocalized.get();
         })
     }
@@ -75,7 +75,7 @@ context.set_translation_domain("Test Domain".into());
 
     /// Returns the current Translation Domain.
     pub fn translation_domain(&self) -> QString {
-        cpp!(unsafe [self as "KLocalizedContextHolder *"] -> QString as "QString" {
+        cpp!(unsafe [self as "const KLocalizedContextHolder *"] -> QString as "QString" {
             return self->klocalized->translationDomain();
         })
     }
diff --git a/src/klocalizedstring.rs b/src/klocalizedstring.rs
index 5a887a9..6657bd7 100644
--- a/src/klocalizedstring.rs
+++ b/src/klocalizedstring.rs
@@ -50,7 +50,7 @@ impl KLocalizedString {
     /// Set the languages for which translations will be made.
     /// This overrides the languages provided by the locale. Languages should be ordered with decreasing priority.
     /// TODO: Add Test
-    pub fn set_languages(languages: &QStringList) {
+    pub fn set_languages(languages: QStringList) {
         cpp!(unsafe [languages as "QStringList"] {
             KLocalizedString::setLanguages(languages);
         });
@@ -98,7 +98,7 @@ impl KLocalizedString {
     /// Finalize the translation.
     /// Creates translated QString, with placeholders substituted by arguments given by KLocalizedString::subs methods.
     pub fn to_qstring(&self) -> QString {
-        cpp!(unsafe [self as "KLocalizedString *"] -> QString as "QString" {
+        cpp!(unsafe [self as "const KLocalizedString *"] -> QString as "QString" {
             return self->toString();
         })
     }
@@ -107,15 +107,15 @@ impl KLocalizedString {
     /// TODO: Add Test
     pub fn with_domain(&self, domain: &CStr) -> KLocalizedString {
         let domain_ptr = domain.as_ptr();
-        cpp!(unsafe [self as "KLocalizedString *", domain_ptr as "char*"] -> KLocalizedString as "KLocalizedString" {
+        cpp!(unsafe [self as "const KLocalizedString *", domain_ptr as "char*"] -> KLocalizedString as "KLocalizedString" {
             return self->withDomain(domain_ptr);
         })
     }
 
     /// Indicate to look for translation only in given languages.
     /// TODO: Add Test
-    pub fn with_languages(&self, languages: &QStringList) -> KLocalizedString {
-        cpp!(unsafe [self as "KLocalizedString *", languages as "QStringList"] -> KLocalizedString as "KLocalizedString" {
+    pub fn with_languages(&self, languages: QStringList) -> KLocalizedString {
+        cpp!(unsafe [self as "const KLocalizedString *", languages as "QStringList"] -> KLocalizedString as "KLocalizedString" {
             return self->withLanguages(languages);
         })
     }
diff --git a/src/lib.rs b/src/lib.rs
index 4250ceb..da80fa8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -74,5 +74,6 @@ pub mod klocalizedtranslator;
 // pub mod kcountry;
 
 pub mod prelude {
+    pub use crate::klocalizedcontext::KLocalizedContext;
     pub use crate::klocalizedstring::KLocalizedString;
 }