diff --git a/src/fn_call.rs b/src/fn_call.rs
index 4ac5a50d..f7836107 100644
--- a/src/fn_call.rs
+++ b/src/fn_call.rs
@@ -1280,7 +1280,7 @@ pub fn run_builtin_op_assignment(
                 "/=" => return Ok(Some(*x /= y)),
                 "%=" => return Ok(Some(*x %= y)),
                 "~=" => return Ok(Some(*x = x.pow(y as u32))),
-                ">>=" => return Ok(Some(*x = *x << y)),
+                ">>=" => return Ok(Some(*x = *x >> y)),
                 "<<=" => return Ok(Some(*x = *x << y)),
                 _ => (),
             }
diff --git a/tests/compound_equality.rs b/tests/compound_equality.rs
index b09115a0..af5c16b6 100644
--- a/tests/compound_equality.rs
+++ b/tests/compound_equality.rs
@@ -45,16 +45,16 @@ fn test_divide_equals() -> Result<(), Box<EvalAltResult>> {
 }
 
 #[test]
-fn test_left_shift_equals() -> Result<(), Box<EvalAltResult>> {
+fn test_right_shift_equals() -> Result<(), Box<EvalAltResult>> {
     let engine = Engine::new();
     assert_eq!(engine.eval::<INT>("let x = 9; x >>=1; x")?, 4);
     Ok(())
 }
 
 #[test]
-fn test_right_shift_equals() -> Result<(), Box<EvalAltResult>> {
+fn test_left_shift_equals() -> Result<(), Box<EvalAltResult>> {
     let engine = Engine::new();
-    assert_eq!(engine.eval::<INT>("let x = 4; x<<= 2; x")?, 16);
+    assert_eq!(engine.eval::<INT>("let x = 4; x <<= 2; x")?, 16);
     Ok(())
 }