diff --git a/src/util/hex.h b/src/util/hex.h
index 31bcaa2ba..708f33024 100644
--- a/src/util/hex.h
+++ b/src/util/hex.h
@@ -27,7 +27,7 @@ static inline std::string hex_encode(const char *data, unsigned int data_size)
 {
 	std::string ret;
 	ret.reserve(data_size * 2);
-	
+
 	char buf2[3];
 	buf2[2] = '\0';