diff --git a/regress/arm_movr12_hang.py b/regress/arm_movr12_hang.py
new file mode 100644
index 00000000..1ff403c4
--- /dev/null
+++ b/regress/arm_movr12_hang.py
@@ -0,0 +1,9 @@
+from unicorn import *
+uc = Uc(UC_ARCH_ARM, UC_MODE_ARM)
+uc.mem_map(0x1000, 0x1000)
+uc.mem_write(0x1000, '00c000e3'.decode('hex'))
+def hook_block(uc, addr, *args):
+    print 'enter block 0x%04x' % addr
+uc.hook_add(UC_HOOK_BLOCK, hook_block)
+print 'block should only run once'
+uc.emu_start(0x1000, 0x1004, timeout=250)