diff --git a/glib/src/regex.rs b/glib/src/regex.rs
index 910f45e5156f..f5cac2d73809 100644
--- a/glib/src/regex.rs
+++ b/glib/src/regex.rs
@@ -12,13 +12,12 @@ impl Regex {
         replacement: &str,
         match_options: RegexMatchFlags,
     ) -> Result<crate::GString, crate::Error> {
-        let string_len = string.len() as _;
         unsafe {
             let mut error = ptr::null_mut();
             let ret = ffi::g_regex_replace(
                 self.to_glib_none().0,
-                string.to_glib_none().0,
-                string_len,
+                string.as_ptr() as *const _,
+                string.len() as _,
                 start_position,
                 replacement.to_glib_none().0,
                 match_options.into_glib(),
@@ -39,14 +38,13 @@ impl Regex {
         start_position: i32,
         match_options: RegexMatchFlags,
     ) -> Result<MatchInfo, crate::Error> {
-        let string_len = string.len() as _;
         unsafe {
             let mut match_info = ptr::null_mut();
             let mut error = ptr::null_mut();
             let is_ok = ffi::g_regex_match_all_full(
                 self.to_glib_none().0,
-                string.to_glib_none().0,
-                string_len,
+                string.as_ptr() as *const _,
+                string.len() as _,
                 start_position,
                 match_options.into_glib(),
                 &mut match_info,
@@ -68,14 +66,13 @@ impl Regex {
         start_position: i32,
         match_options: RegexMatchFlags,
     ) -> Result<MatchInfo, crate::Error> {
-        let string_len = string.len() as _;
         unsafe {
             let mut match_info = ptr::null_mut();
             let mut error = ptr::null_mut();
             let is_ok = ffi::g_regex_match_full(
                 self.to_glib_none().0,
-                string.to_glib_none().0,
-                string_len,
+                string.as_ptr() as *const _,
+                string.len() as _,
                 start_position,
                 match_options.into_glib(),
                 &mut match_info,
@@ -98,13 +95,12 @@ impl Regex {
         replacement: &str,
         match_options: RegexMatchFlags,
     ) -> Result<crate::GString, crate::Error> {
-        let string_len = string.len() as _;
         unsafe {
             let mut error = ptr::null_mut();
             let ret = ffi::g_regex_replace_literal(
                 self.to_glib_none().0,
-                string.to_glib_none().0,
-                string_len,
+                string.as_ptr() as *const _,
+                string.len() as _,
                 start_position,
                 replacement.to_glib_none().0,
                 match_options.into_glib(),
@@ -126,13 +122,12 @@ impl Regex {
         match_options: RegexMatchFlags,
         max_tokens: i32,
     ) -> Result<Vec<crate::GString>, crate::Error> {
-        let string_len = string.len() as _;
         unsafe {
             let mut error = ptr::null_mut();
             let ret = ffi::g_regex_split_full(
                 self.to_glib_none().0,
-                string.to_glib_none().0,
-                string_len,
+                string.as_ptr() as *const _,
+                string.len() as _,
                 start_position,
                 match_options.into_glib(),
                 max_tokens,