diff --git a/crates/rust-analyzer/src/cli/analysis_stats.rs b/crates/rust-analyzer/src/cli/analysis_stats.rs
index 6b7c0897130..66d201ba66b 100644
--- a/crates/rust-analyzer/src/cli/analysis_stats.rs
+++ b/crates/rust-analyzer/src/cli/analysis_stats.rs
@@ -318,6 +318,6 @@ pub fn analysis_stats(
 fn shuffle<T>(rng: &mut Rand32, slice: &mut [T]) {
     for i in (1..slice.len()).rev() {
         let idx = rng.rand_range(0..i as u32) as usize;
-        slice.swap(idx, i - 1)
+        slice.swap(idx, i)
     }
 }