diff --git a/BeefySysLib/platform/posix/PosixCommon.cpp b/BeefySysLib/platform/posix/PosixCommon.cpp
index 852e19ce..58ebfee5 100644
--- a/BeefySysLib/platform/posix/PosixCommon.cpp
+++ b/BeefySysLib/platform/posix/PosixCommon.cpp
@@ -658,6 +658,9 @@ BFP_EXPORT void BFP_CALLTYPE BfpSystem_GetEnvironmentStrings(char* outStr, int*
     while (true)
     {
         char* envStr = *envPtr;
+        if (envStr == NULL)
+            break;
+
         env.Append(envStr, strlen(envStr) + 1);
         ++envPtr;
     }