diff --git a/docs/concepts/control-flow.md b/docs/concepts/control-flow.md
index 7a4a306..369c5cc 100644
--- a/docs/concepts/control-flow.md
+++ b/docs/concepts/control-flow.md
@@ -113,7 +113,7 @@ fn main() {
     while index < 5 {
         println("the value is: " + a[index])
 
-        index = index + 1
+        index += 1
     }
 }
 ```
diff --git a/examples/bubblesort.sb b/examples/bubblesort.sb
index f800bf9..902b893 100644
--- a/examples/bubblesort.sb
+++ b/examples/bubblesort.sb
@@ -14,10 +14,10 @@ fn main() {
                 arr[d+1] = swap
             }
 
-            d = d + 1
+            d += 1
         }
 
-        c = c + 1
+        c += 1
     }
 
     println(arr)
diff --git a/lib/stdio.sb b/lib/stdio.sb
index cf46fd5..e5cb55f 100644
--- a/lib/stdio.sb
+++ b/lib/stdio.sb
@@ -13,7 +13,7 @@ fn println(msg: string) {
 fn len(arr: int[]): int {
     let c: int = 0
     while arr[c] {
-        c = c + 1
+        c += 1
     }
 
     return c
diff --git a/src/parser/tests.rs b/src/parser/tests.rs
index 210b96b..5159f84 100644
--- a/src/parser/tests.rs
+++ b/src/parser/tests.rs
@@ -463,7 +463,7 @@ fn test_array_access_in_loop() {
     
         while i < 5 {
           println(x[i])
-          i = i + 1
+          i += 1
         }
     }
     ";