diff --git a/rsfbclient-native/src/xsqlda.rs b/rsfbclient-native/src/xsqlda.rs
index b22a2b0..5aad50a 100644
--- a/rsfbclient-native/src/xsqlda.rs
+++ b/rsfbclient-native/src/xsqlda.rs
@@ -36,7 +36,7 @@ impl XSqlDa {
     /// Returns a mutable reference to a XSQLVAR
     pub fn get_xsqlvar_mut(&mut self, col: usize) -> Option<&mut ibase::XSQLVAR> {
         if col < self.len as usize {
-            let xsqlvar = unsafe { self.ptr.as_mut().sqlvar.get_unchecked_mut(col as usize) };
+            let xsqlvar = unsafe { self.ptr.as_mut().sqlvar.get_mut(col as usize).unwrap() };
 
             Some(xsqlvar)
         } else {