diff --git a/tests/unit/test_x86.c b/tests/unit/test_x86.c
index a2c4f20e..1df61e2f 100644
--- a/tests/unit/test_x86.c
+++ b/tests/unit/test_x86.c
@@ -846,6 +846,20 @@ static void test_x86_nested_emu_start()
     OK(uc_close(uc));
 }
 
+static void test_x86_splitting_mem_unmap()
+{
+    uc_engine *uc;
+
+    OK(uc_open(UC_ARCH_X86, UC_MODE_32, &uc));
+
+    OK(uc_mem_map(uc, 0x20000, 0x1000, UC_PROT_NONE));
+    OK(uc_mem_map(uc, 0x21000, 0x2000, UC_PROT_NONE));
+
+    OK(uc_mem_unmap(uc, 0x21000, 0x1000));
+
+    OK(uc_close(uc));
+}
+
 TEST_LIST = {{"test_x86_in", test_x86_in},
              {"test_x86_out", test_x86_out},
              {"test_x86_mem_hook_all", test_x86_mem_hook_all},
@@ -872,4 +886,5 @@ TEST_LIST = {{"test_x86_in", test_x86_in},
              {"test_x86_hook_tcg_op", test_x86_hook_tcg_op},
              {"test_x86_cmpxchg", test_x86_cmpxchg},
              {"test_x86_nested_emu_start", test_x86_nested_emu_start},
-             {NULL, NULL}};
\ No newline at end of file
+             {"test_x86_splitting_mem_unmap", test_x86_splitting_mem_unmap},
+             {NULL, NULL}};