diff --git a/stacks-common/src/deps_common/bitcoin/blockdata/script.rs b/stacks-common/src/deps_common/bitcoin/blockdata/script.rs
index 8b08ab998a..be5a6144c7 100644
--- a/stacks-common/src/deps_common/bitcoin/blockdata/script.rs
+++ b/stacks-common/src/deps_common/bitcoin/blockdata/script.rs
@@ -201,7 +201,7 @@ fn build_scriptint(n: i64) -> Vec<u8> {
 
     let neg = n < 0;
 
-    let mut abs = n.abs() as usize;
+    let mut abs = n.unsigned_abs() as usize;
     let mut v = Vec::with_capacity(size_of::<usize>() + 1);
     while abs > 0xFF {
         v.push((abs & 0xFF) as u8);