diff --git a/src/google_breakpad/common/minidump_exception_mac.h b/src/google_breakpad/common/minidump_exception_mac.h
index fadbf4ef..d5e59652 100644
--- a/src/google_breakpad/common/minidump_exception_mac.h
+++ b/src/google_breakpad/common/minidump_exception_mac.h
@@ -69,6 +69,8 @@ typedef enum {
       /* EXC_RPC_ALERT */
   MD_EXCEPTION_MAC_SIMULATED       = 0x43507378
       /* Fake exception code used by Crashpad's SimulateCrash ('CPsx'). */
+  MD_NS_EXCEPTION_SIMULATED       = 0x43506E78
+      /* Fake exception code used by Crashpad's uncaught exceptions ('CPnx'). */
 } MDExceptionMac;
 
 /* For (MDException).exception_flags.  Breakpad minidump extension for Mac OS X
diff --git a/src/processor/minidump_processor.cc b/src/processor/minidump_processor.cc
index 04b7e129..ac86fbd3 100644
--- a/src/processor/minidump_processor.cc
+++ b/src/processor/minidump_processor.cc
@@ -1138,6 +1138,9 @@ string MinidumpProcessor::GetCrashReason(Minidump* dump, uint64_t* address) {
         case MD_EXCEPTION_MAC_SIMULATED:
           reason = "Simulated Exception";
           break;
+        case MD_NS_EXCEPTION_SIMULATED:
+          reason = "Uncaught NSException";
+          break;
       }
       break;
     }