diff --git a/lib/internal/querystring.js b/lib/internal/querystring.js
index ee589e1984294d..ba4cc98f84a54d 100644
--- a/lib/internal/querystring.js
+++ b/lib/internal/querystring.js
@@ -17,16 +17,7 @@ const isHexTable = [
   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
   0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 64 - 79
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80 - 95
-  0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 96 - 111
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 112 - 127
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 128 ...
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0  // ... 256
+  0, 1, 1, 1, 1, 1, 1                             // 96 - 102
 ];
 
 function encodeStr(str, noEscapeTable, hexTable) {
diff --git a/lib/internal/url.js b/lib/internal/url.js
index 7c2637246e9b51..09785429dc72d2 100644
--- a/lib/internal/url.js
+++ b/lib/internal/url.js
@@ -781,7 +781,7 @@ function parseParams(qs) {
       if (code === CHAR_PERCENT) {
         encodeCheck = 1;
       } else if (encodeCheck > 0) {
-        if (isHexTable[code] === 1) {
+        if (isHexTable[code]) {
           if (++encodeCheck === 3) {
             querystring = require('querystring');
             encoded = true;
diff --git a/lib/querystring.js b/lib/querystring.js
index f057226f08b51f..0e460138c2630d 100644
--- a/lib/querystring.js
+++ b/lib/querystring.js
@@ -59,16 +59,7 @@ const unhexTable = [
   +0, +1, +2, +3, +4, +5, +6, +7, +8, +9, -1, -1, -1, -1, -1, -1, // 48 - 63
   -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 64 - 79
   -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 80 - 95
-  -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 96 - 111
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 112 - 127
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 128 ...
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1  // ... 255
+  -1, 10, 11, 12, 13, 14, 15                                      // 96 - 102
 ];
 // A safe fast alternative to decodeURIComponent
 function unescapeBuffer(s, decodeSpaces) {
@@ -354,7 +345,7 @@ function parse(qs, sep, eq, options) {
               encodeCheck = 1;
               continue;
             } else if (encodeCheck > 0) {
-              if (isHexTable[code] === 1) {
+              if (isHexTable[code]) {
                 if (++encodeCheck === 3)
                   keyEncoded = true;
                 continue;
@@ -383,7 +374,7 @@ function parse(qs, sep, eq, options) {
         if (code === 37/* % */) {
           encodeCheck = 1;
         } else if (encodeCheck > 0) {
-          if (isHexTable[code] === 1) {
+          if (isHexTable[code]) {
             if (++encodeCheck === 3)
               valEncoded = true;
           } else {