diff --git a/src/lib/formats/fs_oric_jasmin.cpp b/src/lib/formats/fs_oric_jasmin.cpp
index 28c13ab634f..361f40332ea 100644
--- a/src/lib/formats/fs_oric_jasmin.cpp
+++ b/src/lib/formats/fs_oric_jasmin.cpp
@@ -286,10 +286,10 @@ std::vector<dir_entry> impl::root_dir::contents()
 			std::string fname = read_file_name(bdir.rodata()+off+3);
 			bool system = ref == 0 && id == 0 && bdir.r32b(off+0xb) == 0x2e535953;
 			if(system)
-				res.emplace_back(dir_entry(fname, dir_entry_type::system_file, 0));
+				res.emplace_back(dir_entry(std::move(fname), dir_entry_type::system_file, 0));
 
 			else if(m_fs.ref_valid(ref))
-				res.emplace_back(dir_entry(fname, dir_entry_type::file, id));
+				res.emplace_back(dir_entry(std::move(fname), dir_entry_type::file, id));
 
 			id++;
 		}
diff --git a/src/lib/formats/fs_prodos.cpp b/src/lib/formats/fs_prodos.cpp
index df13d0a4caa..2ce67301999 100644
--- a/src/lib/formats/fs_prodos.cpp
+++ b/src/lib/formats/fs_prodos.cpp
@@ -351,9 +351,9 @@ std::vector<dir_entry> impl::root_dir::contents()
 			auto name = blk.rstr(off+1, type & 0xf);
 			type >>= 4;
 			if(type == 0xd)
-				res.emplace_back(dir_entry(name, dir_entry_type::dir, id));
+				res.emplace_back(dir_entry(std::move(name), dir_entry_type::dir, id));
 			else if(type != 0)
-				res.emplace_back(dir_entry(name, dir_entry_type::file, id));
+				res.emplace_back(dir_entry(std::move(name), dir_entry_type::file, id));
 			off += 39;
 			id ++;
 		}
diff --git a/src/lib/formats/fs_vtech.cpp b/src/lib/formats/fs_vtech.cpp
index e294e657801..7b8edf53f63 100644
--- a/src/lib/formats/fs_vtech.cpp
+++ b/src/lib/formats/fs_vtech.cpp
@@ -137,7 +137,7 @@ std::vector<dir_entry> vtech_image::impl::root_dir::contents()
 			if(bdir.r8(off+1) != ':')
 				continue;
 			std::string fname = trim_end_spaces(bdir.rstr(off+2, 8));
-			res.emplace_back(dir_entry(fname, dir_entry_type::file, id));
+			res.emplace_back(dir_entry(std::move(fname), dir_entry_type::file, id));
 			id++;
 		}
 	}
diff --git a/src/lib/formats/fsmgr.h b/src/lib/formats/fsmgr.h
index 9859f929e9d..201dfe389bb 100644
--- a/src/lib/formats/fsmgr.h
+++ b/src/lib/formats/fsmgr.h
@@ -126,7 +126,7 @@ struct dir_entry {
 	dir_entry_type m_type;
 	u64 m_key;
 
-	dir_entry(const std::string &name, dir_entry_type type, u64 key) : m_name(name), m_type(type), m_key(key) {}
+	dir_entry(std::string &&name, dir_entry_type type, u64 key) : m_name(std::move(name)), m_type(type), m_key(key) {}
 };
 
 class fsblk_t {