diff --git a/crates/project/src/debugger/dap_store.rs b/crates/project/src/debugger/dap_store.rs
index 368b6da25c4ccb0ecc9df4ab3efa935b2ec8d18f..d3e37e77a64f49d66dd99b31d277945886a2091b 100644
--- a/crates/project/src/debugger/dap_store.rs
+++ b/crates/project/src/debugger/dap_store.rs
@@ -576,7 +576,12 @@ impl DapStore {
             const LIMIT: usize = 100;
 
             if value.len() > LIMIT {
-                value.truncate(LIMIT);
+                let mut index = LIMIT;
+                // If index isn't a char boundary truncate will cause a panic
+                while !value.is_char_boundary(index) {
+                    index -= 1;
+                }
+                value.truncate(index);
                 value.push_str("...");
             }