diff --git a/HACKING b/HACKING
index c3dc10e4..a30bb527 100644
--- a/HACKING
+++ b/HACKING
@@ -8,13 +8,13 @@ Coding Style
 
   Examples:
     BAD:
-            ``if(a)``
+            ``if (a)``
     BAD:
-            ``if(a!=NULL)``
+            ``if (a!=NULL)``
     GOOD:
-            ``if(a != NULL)``
+            ``if (a != NULL)``
     GOOD:
-            ``if(a != 0)``
+            ``if (a != 0)``
 
 - Put figure brackets ``{}`` even if you have only one operator
   in ``if``, ``for``, etc. This also makes code easier to read and 
@@ -24,12 +24,29 @@ Coding Style
     BAD:
       .. line-block::
 
-         if(a != NULL)
+         if (a != NULL)
            message(G_LOG_LEVEL_MESSAGE, "Ko");
     GOOD:
       .. line-block::
 
-         if(a != NULL) {
+         if (a != NULL) {
+           message(G_LOG_LEVEL_MESSAGE, "Ok");
+         }
+
+- Put SPACES before the opening round bracket and after the closing round
+  bracket. One more time, it improves the readability of the code.
+
+  Examples:
+    BAD:
+      .. line-block::
+
+         if(a != NULL){
+           message(G_LOG_LEVEL_MESSAGE, "Ko");
+         }
+    GOOD:
+      .. line-block::
+
+         if (a != NULL) {
            message(G_LOG_LEVEL_MESSAGE, "Ok");
          }
 
@@ -42,4 +59,3 @@ Coding Style
             ``return(0);``
 
 - Check for memory leaks.
-