style fix
diff --git a/src/core/ngx_sha1.h b/src/core/ngx_sha1.h
index 78f52c5..f158fd4 100644
--- a/src/core/ngx_sha1.h
+++ b/src/core/ngx_sha1.h
@@ -22,9 +22,9 @@
 typedef SHA_CTX  ngx_sha1_t;
 
 
-#define  ngx_sha1_init    SHA1_Init
-#define  ngx_sha1_update  SHA1_Update
-#define  ngx_sha1_final   SHA1_Final
+#define ngx_sha1_init    SHA1_Init
+#define ngx_sha1_update  SHA1_Update
+#define ngx_sha1_final   SHA1_Final
 
 
 #endif /* _NGX_SHA1_H_INCLUDED_ */