diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 83c5ba80..41cb797f 100755
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -4122,7 +4122,12 @@ Shell:
   - PKGBUILD
   - gradlew
   interpreters:
+  - ash
   - bash
+  - dash
+  - ksh
+  - mksh
+  - pdksh
   - rc
   - sh
   - zsh
diff --git a/test/fixtures/Shell/ash-env b/test/fixtures/Shell/ash-env
new file mode 100644
index 00000000..f02fa3d9
--- /dev/null
+++ b/test/fixtures/Shell/ash-env
@@ -0,0 +1,2 @@
+#!/usr/bin/env ash
+echo "ash"
diff --git a/test/fixtures/Shell/dash-env b/test/fixtures/Shell/dash-env
new file mode 100644
index 00000000..ec7d7a49
--- /dev/null
+++ b/test/fixtures/Shell/dash-env
@@ -0,0 +1,2 @@
+#!/usr/bin/env dash
+echo "dash"
diff --git a/test/fixtures/Shell/ksh-env b/test/fixtures/Shell/ksh-env
new file mode 100644
index 00000000..004054bd
--- /dev/null
+++ b/test/fixtures/Shell/ksh-env
@@ -0,0 +1,2 @@
+#!/usr/bin/env ksh
+echo "ksh"
diff --git a/test/fixtures/Shell/mksh b/test/fixtures/Shell/mksh
new file mode 100644
index 00000000..6976d98c
--- /dev/null
+++ b/test/fixtures/Shell/mksh
@@ -0,0 +1,2 @@
+#!/bin/mksh
+echo "mksh"
diff --git a/test/fixtures/Shell/pdksh-env b/test/fixtures/Shell/pdksh-env
new file mode 100644
index 00000000..5ef5ac47
--- /dev/null
+++ b/test/fixtures/Shell/pdksh-env
@@ -0,0 +1,2 @@
+#!/usr/bin/env pdksh
+echo "pdksh"