diff --git a/pyproject.toml b/pyproject.toml
index e15ef252..853cf63f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ dependencies = [
   "packaging",
   "psutil>=5.6.7",
   "windows-curses; platform_system == 'Windows'",
+  "shtab; platform_system != 'Windows'",
 ]
 description = "A cross-platform curses-based monitoring tool"
 dynamic = ["version"]
diff --git a/requirements.txt b/requirements.txt
index 5c443e38..e510c41b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 defusedxml
 packaging
 psutil>=5.6.7
+shtab; platform_system != 'Windows'
 windows-curses; platform_system == 'Windows'