diff --git a/src/fast-path.js b/src/fast-path.js
index 80f7d613..a8579262 100644
--- a/src/fast-path.js
+++ b/src/fast-path.js
@@ -342,6 +342,12 @@ FPp.needsParens = function(assumeExpressionContext) {
             return true;
           }
 
+          // Add parenthesis when working with binary operators
+          // It's not stricly needed but helps with code understanding
+          if (["|", "^", "&", ">>", "<<", ">>>"].indexOf(po) !== -1) {
+            return true;
+          }
+
         default:
           return false;
       }
diff --git a/tests/binary_math/__snapshots__/jsfmt.spec.js.snap b/tests/binary_math/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 00000000..45ee59c6
--- /dev/null
+++ b/tests/binary_math/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,25 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`parens.js 1`] = `
+"const result = (a + b) >>> 1;
+var sizeIndex = ((index - 1) >>> level) & MASK;
+var from = offset > left ? 0 : (left - offset) >> level;
+var to = ((right - offset) >> level) + 1;
+if (rawIndex < 1 << (list._level + SHIFT)) {}
+var res = size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);
+sign = 1 - (2 * (b[3] >> 7));
+exponent = (((b[3] << 1) & 0xff) | (b[2] >> 7)) - 127;
+mantissa = ((b[2] & 0x7f) << 16) | (b[1] << 8) | b[0];
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+const result = (a + b) >>> 1;
+var sizeIndex = ((index - 1) >>> level) & MASK;
+var from = offset > left ? 0 : (left - offset) >> level;
+var to = ((right - offset) >> level) + 1;
+if (rawIndex < 1 << (list._level + SHIFT)) {
+}
+var res = size < SIZE ? 0 : (size - 1) >>> SHIFT << SHIFT;
+sign = 1 - 2 * (b[3] >> 7);
+exponent = (((b[3] << 1) & 0xff) | (b[2] >> 7)) - 127;
+mantissa = ((b[2] & 0x7f) << 16) | (b[1] << 8) | b[0];
+"
+`;
diff --git a/tests/binary_math/jsfmt.spec.js b/tests/binary_math/jsfmt.spec.js
new file mode 100644
index 00000000..c426c19c
--- /dev/null
+++ b/tests/binary_math/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, null, ["babylon", "typescript"]);
diff --git a/tests/binary_math/parens.js b/tests/binary_math/parens.js
new file mode 100644
index 00000000..8e0f73de
--- /dev/null
+++ b/tests/binary_math/parens.js
@@ -0,0 +1,9 @@
+const result = (a + b) >>> 1;
+var sizeIndex = ((index - 1) >>> level) & MASK;
+var from = offset > left ? 0 : (left - offset) >> level;
+var to = ((right - offset) >> level) + 1;
+if (rawIndex < 1 << (list._level + SHIFT)) {}
+var res = size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);
+sign = 1 - (2 * (b[3] >> 7));
+exponent = (((b[3] << 1) & 0xff) | (b[2] >> 7)) - 127;
+mantissa = ((b[2] & 0x7f) << 16) | (b[1] << 8) | b[0];