diff --git a/gl2.rs b/gl2.rs
index 49bd5fd..21474ff 100644
--- a/gl2.rs
+++ b/gl2.rs
@@ -367,13 +367,6 @@ pub type GLsizeiptr = ssize_t;
 // gl2ext
 pub type GLeglImageOES = *c_void;
 
-// Helper functions
-
-pub fn destroy<T>(_x: T) {
-    // Just let the object drop.
-}
-
-
 // Exposed Rust API using Rust naming conventions
 
 pub fn active_texture(texture: GLenum) {
@@ -895,15 +888,15 @@ pub fn scissor(x: GLint, y: GLint, width: GLsizei, height: GLsizei) {
     }
 }
 
-pub fn shader_source(shader: GLuint, strings: &[~[u8]]) {
+pub fn shader_source(shader: GLuint, strings: &[&[u8]]) {
+    let pointers = strings.map(|string| (*string).as_ptr());
+    let lengths = strings.map(|string| string.len() as GLint);
     unsafe {
-        let pointers = strings.map(|string| (*string).as_ptr());
-        let lengths = strings.map(|string| string.len() as GLint);
         glShaderSource(shader, pointers.len() as GLsizei,
                        pointers.as_ptr() as **GLchar, lengths.as_ptr());
-        destroy(lengths);
-        destroy(pointers);
     }
+    drop(lengths);
+    drop(pointers);
 }
 
 // FIXME: Does not verify buffer size -- unsafe!