diff --git a/hands-on_dlang.md b/hands-on_dlang.md
index 97f1c44..baeb8d9 100644
--- a/hands-on_dlang.md
+++ b/hands-on_dlang.md
@@ -1394,11 +1394,11 @@ import std.stdio : writeln;
 auto sqrt(T)(T x) {
     enum GoodEnough = 0.01;
     import std.math : abs;
-    T z = x*x, old = 0;
+    T z = x * x, old = 0;
     int iter;
     while (abs(z - old) > GoodEnough) {
         old = z;
-        z -= ((z*z)-x) / (2*z);
+        z -= ((z * z) - x) / (2 * z);
     }
 
     return z;