diff --git a/rust/src/zstd_compress_dictionary.rs b/rust/src/zstd_compress_dictionary.rs
index 0671d834a..bb99d5dd5 100644
--- a/rust/src/zstd_compress_dictionary.rs
+++ b/rust/src/zstd_compress_dictionary.rs
@@ -2883,8 +2883,7 @@ mod tests {
             return ptr::null_mut();
         }
 
-        let mut allocation = Vec::<u8>::with_capacity(size);
-        allocation.resize(size, 0);
+        let mut allocation = vec![0u8; size];
         let buffer = allocation.as_mut_ptr();
         probe.allocation = buffer;
         probe.allocation_capacity = allocation.capacity();