diff --git a/include/capstone.h b/include/capstone.h
index 32321760..c56a48e8 100644
--- a/include/capstone.h
+++ b/include/capstone.h
@@ -138,7 +138,7 @@ typedef enum cs_opt_value {
 
  @return: return number of bytes to skip, or 0 to immediately stop disassembling.
 */
-typedef size_t (*cs_skipdata_cb_t)(const uint8_t *code, size_t code_size, size_t offset, void* user_data);
+typedef size_t (*cs_skipdata_cb_t)(const uint8_t *code, size_t code_size, size_t offset, void *user_data);
 
 // User-customized setup for SKIPDATA option
 typedef struct cs_opt_skipdata {