diff --git a/regress/wrong_sp_arm64.py b/regress/wrong_sp_arm64.py
new file mode 100755
index 00000000..d63791e1
--- /dev/null
+++ b/regress/wrong_sp_arm64.py
@@ -0,0 +1,12 @@
+#!/usr/bin/python
+
+from unicorn import *
+from unicorn.arm64_const import *
+
+try:
+    uc = Uc(UC_ARCH_ARM64, UC_MODE_ARM)
+    uc.reg_write(UC_ARM64_REG_SP, 4)
+    print 'Writing 4 to SP'
+    print 'SP =', uc.reg_read(UC_ARM64_REG_SP)
+except UcError as e:
+    print("ERROR: %s" % e)