diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9589fa9..eb83ad4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ For major (breaking) changes - version 3 and 2 see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 4.13.1         | 2019-07-01     | `versions()` gcc fix macos |
 | 4.13.0         | 2019-07-01     | `networkConnections()` added PID and process |
 | 4.12.2         | 2019-06-24     | `system()` added Raspberry PI 4 detection |
 | 4.12.1         | 2019-06-24     | `networkInterface()` virtual interfaces macos, `networkInterfaceDefault()` |
diff --git a/docs/history.html b/docs/history.html
index 95facc0..cf0025d 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -83,6 +83,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">4.13.1</th>
+                    <td>2019-07-01</td>
+                    <td><span class="code">versions()</span> gcc fix macos</td>
+                  </tr>
                   <tr>
                     <th scope="row">4.13.0</th>
                     <td>2019-07-01</td>
diff --git a/docs/index.html b/docs/index.html
index d36a225..93f51e9 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -168,7 +168,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span></div>
-      <div class="version">Current Version: <span id="version">4.13.0</span></div>
+      <div class="version">Current Version: <span id="version">4.13.1</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
@@ -191,7 +191,7 @@
     </div>
     <div class="row number-section">
       <div class="col-xl-4 col-lg-4 col-md-4 col-12">
-        <div class="numbers">9,082</div>
+        <div class="numbers">9,183</div>
         <div class="title">Lines of code</div>
       </div>
       <div class="col-xl-4 col-lg-4 col-md-4 col-12">
diff --git a/lib/osinfo.js b/lib/osinfo.js
index 366a7c3..4f0b653 100644
--- a/lib/osinfo.js
+++ b/lib/osinfo.js
@@ -410,11 +410,8 @@ function versions(callback) {
           functionProcessed();
         });
         if (_darwin) {
-          const cmdLineToolsExists = fs.existsSync('/Library/Developer/CommandLineTools/usr/bin/');
-          const xcodeAppExists = fs.existsSync('/Applications/Xcode.app/Contents/Developer/Tools');
-          const xcodeExists = fs.existsSync('/Library/Developer/Xcode/');
           const gitHomebrewExists = fs.existsSync('/usr/local/Cellar/git');
-          if (cmdLineToolsExists || xcodeExists || gitHomebrewExists || xcodeAppExists) {
+          if (util.darwinXcodeExists() || gitHomebrewExists) {
             exec('git --version', function (error, stdout) {
               if (!error) {
                 let git = stdout.toString().split('\n')[0] || '';
@@ -616,25 +613,29 @@ function versions(callback) {
             functionProcessed();
           });
         }
-        exec('gcc -dumpversion', function (error, stdout) {
-          if (!error) {
-            result.gcc = stdout.toString().split('\n')[0].trim() || '';
-          }
-          if (result.gcc.indexOf('.') > -1) {
-            functionProcessed();
-          } else {
-            exec('gcc --version', function (error, stdout) {
-              if (!error) {
-                const gcc = stdout.toString().split('\n')[0].trim();
-                if (gcc.indexOf('gcc') > -1 && gcc.indexOf(')') > -1) {
-                  const parts = gcc.split(')');
-                  result.gcc = parts[1].trim() || result.gcc;
-                }
-              }
+        if ((_darwin && util.darwinXcodeExists()) || !_darwin) {
+          exec('gcc -dumpversion', function (error, stdout) {
+            if (!error) {
+              result.gcc = stdout.toString().split('\n')[0].trim() || '';
+            }
+            if (result.gcc.indexOf('.') > -1) {
               functionProcessed();
-            });
-          }
-        });
+            } else {
+              exec('gcc --version', function (error, stdout) {
+                if (!error) {
+                  const gcc = stdout.toString().split('\n')[0].trim();
+                  if (gcc.indexOf('gcc') > -1 && gcc.indexOf(')') > -1) {
+                    const parts = gcc.split(')');
+                    result.gcc = parts[1].trim() || result.gcc;
+                  }
+                }
+                functionProcessed();
+              });
+            }
+          });
+        } else {
+          functionProcessed();
+        }
         exec(util.getVboxmanage() + ' -v 2>&1', function (error, stdout) {
           if (!error) {
             const vbox = stdout.toString().split('\n')[0] || '';
diff --git a/lib/util.js b/lib/util.js
index 56646db..8800433 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -386,6 +386,13 @@ function execWin(cmd, opts, callback) {
   });
 }
 
+function darwinXcodeExists() {
+  const cmdLineToolsExists = fs.existsSync('/Library/Developer/CommandLineTools/usr/bin/');
+  const xcodeAppExists = fs.existsSync('/Applications/Xcode.app/Contents/Developer/Tools');
+  const xcodeExists = fs.existsSync('/Library/Developer/Xcode/');
+  return (cmdLineToolsExists || xcodeExists || xcodeAppExists);
+}
+
 function nanoSeconds() {
   const time = process.hrtime();
   if (!Array.isArray(time) || time.length !== 2) {
@@ -423,6 +430,7 @@ exports.parseHead = parseHead;
 exports.findObjectByKey = findObjectByKey;
 exports.getWmic = getWmic;
 exports.wmic = wmic;
+exports.darwinXcodeExists = darwinXcodeExists;
 exports.getVboxmanage = getVboxmanage;
 exports.powerShell = powerShell;
 exports.nanoSeconds = nanoSeconds;