diff --git a/include/unicorn/unicorn.h b/include/unicorn/unicorn.h
index ee307fac..103bf53f 100644
--- a/include/unicorn/unicorn.h
+++ b/include/unicorn/unicorn.h
@@ -400,6 +400,28 @@ uc_err uc_query(uc_engine *uc, uc_query_type type, size_t *result);
 UNICORN_EXPORT
 uc_err uc_errno(uc_engine *uc);
 
+/*
+ Report the last error number when some API function fail.
+ Like glibc's errno, uc_errno might not retain its old value once accessed.
+
+ @uc: handle returned by uc_open()
+
+ @return: error code of uc_err enum type (UC_ERR_*, see above)
+*/
+UNICORN_EXPORT
+uint32_t uc_target_page_align(uc_engine *uc);
+
+/*
+ Report the last error number when some API function fail.
+ Like glibc's errno, uc_errno might not retain its old value once accessed.
+
+ @uc: handle returned by uc_open()
+
+ @return: error code of uc_err enum type (UC_ERR_*, see above)
+*/
+UNICORN_EXPORT
+uint32_t uc_target_page_size(uc_engine *uc);
+
 /*
  Return a string describing given error code.
 
diff --git a/uc.c b/uc.c
index ef5ef23c..c54671b5 100644
--- a/uc.c
+++ b/uc.c
@@ -53,6 +53,20 @@ uc_err uc_errno(uc_engine *uc)
 }
 
 
+UNICORN_EXPORT
+uint32_t uc_target_page_align(uc_engine *uc)
+{
+    return uc->target_page_align;
+}
+
+
+UNICORN_EXPORT
+uint32_t uc_target_page_size(uc_engine *uc)
+{
+    return uc->target_page_size;
+}
+
+
 UNICORN_EXPORT
 const char *uc_strerror(uc_err code)
 {