diff --git a/SC1113.md b/SC1113.md
new file mode 100644
index 0000000..2f3cad7
--- /dev/null
+++ b/SC1113.md
@@ -0,0 +1,22 @@
+## Use #!, not just #, for the shebang.
+
+### Problematic code:
+
+```sh
+# /bin/bash
+echo "Hello World"
+```
+
+### Correct code:
+
+```sh
+#! /bin/bash
+echo "Hello World"
+```
+### Rationale:
+
+You appear to be specifying a shebang, but missing the bang (i.e. `!`). The shebang should always be on the form `#!/path/shell`.
+
+### Exceptions:
+
+None.
\ No newline at end of file