diff --git a/c/ex3.c b/c/ex3.c
index 2d4d54c..84ff9a3 100644
--- a/c/ex3.c
+++ b/c/ex3.c
@@ -4,9 +4,8 @@
 static unsigned char reverse_byte(unsigned char c) {
     unsigned char res = 0;
     for (size_t i = 0; i < CHAR_BIT; ++i) {
-        res <<= 1;
-        res |= c & 1;
-        c >>= 1;
+        unsigned char bit = (c & (1 << i));
+        res |= bit << (CHAR_BIT - i - 1);
     }
     return res;
 }