diff --git a/src/cmd/joinp.rs b/src/cmd/joinp.rs
index 634366039..3b2124d27 100644
--- a/src/cmd/joinp.rs
+++ b/src/cmd/joinp.rs
@@ -508,7 +508,7 @@ impl Args {
             // if so, we need to decompress it first
             if input1_path.extension().and_then(std::ffi::OsStr::to_str) == Some("sz") {
                 let decompressed_path =
-                    util::decompress_snappy_file(&input1_path.to_path_buf(), &tmpdir)?;
+                    util::decompress_snappy_file(&input1_path.to_path_buf(), tmpdir)?;
                 self.arg_input1 = decompressed_path;
             }
 
@@ -533,7 +533,7 @@ impl Args {
             // check if the right input file is snappy compressed
             if input2_path.extension().and_then(std::ffi::OsStr::to_str) == Some("sz") {
                 let decompressed_path =
-                    util::decompress_snappy_file(&input2_path.to_path_buf(), &tmpdir)?;
+                    util::decompress_snappy_file(&input2_path.to_path_buf(), tmpdir)?;
                 self.arg_input2 = decompressed_path;
             }