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-rw-r--r--src/libterm/terminfo/parm.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libterm/terminfo/parm.rs b/src/libterm/terminfo/parm.rs
index 016dc84b23b..82b5ec11d95 100644
--- a/src/libterm/terminfo/parm.rs
+++ b/src/libterm/terminfo/parm.rs
@@ -297,7 +297,7 @@ pub fn expand(cap: &[u8], params: &[Param], vars: &mut Variables)
             PushParam => {
                 // params are 1-indexed
                 stack.push(mparams[match cur.to_digit(10) {
-                    Some(d) => d - 1,
+                    Some(d) => d as usize - 1,
                     None => return Err("bad param number".to_string())
                 }].clone());
             },