diff --git a/Kudu.Core/Infrastructure/ProcessExtensions.cs b/Kudu.Core/Infrastructure/ProcessExtensions.cs
index e80e58437..b0c2705bc 100644
--- a/Kudu.Core/Infrastructure/ProcessExtensions.cs
+++ b/Kudu.Core/Infrastructure/ProcessExtensions.cs
@@ -494,7 +494,8 @@ private static Dictionary<string, string> GetEnvironmentVariablesCore(IntPtr hPr
                 throw new Win32Exception("Unable to read environment block.");
             }
 
-            const int maxEnvSize = 32767;
+            // Limit env size to 10 MB to be defensive
+            const int maxEnvSize = 10 * 1000 * 1000;
             if (dataSize > maxEnvSize)
             {
                 dataSize = maxEnvSize;