diff --git a/interpreter.h b/interpreter.h
index c74e7f2..8fe6d7c 100644
--- a/interpreter.h
+++ b/interpreter.h
@@ -445,7 +445,12 @@ struct Picoc_Struct
     const char *VersionString;
     
     /* exit longjump buffer */
+#if defined(UNIX_HOST) || defined(WIN32)
     jmp_buf PicocExitBuf;
+#endif
+#ifdef SURVEYOR_HOST
+    int PicocExitBuf[41];
+#endif
     
     /* string table */
     struct Table StringTable;
diff --git a/parse.c b/parse.c
index bd18cfe..72b6d67 100644
--- a/parse.c
+++ b/parse.c
@@ -883,7 +883,7 @@ void PicocParseInteractiveNoStartPrompt(Picoc *pc, int EnableDebugger)
     enum ParseResult Ok;
     
     LexInitParser(&Parser, pc, NULL, NULL, pc->StrEmpty, TRUE, EnableDebugger);
-    PicocPlatformSetExitPoint();
+    PicocPlatformSetExitPoint(pc);
     LexInteractiveClear(pc, &Parser);
 
     do
diff --git a/picoc.c b/picoc.c
index c8bd3ed..19715ff 100644
--- a/picoc.c
+++ b/picoc.c
@@ -44,7 +44,7 @@ int main(int argc, char **argv)
     }
     else
     {
-        if (PicocPlatformSetExitPoint())
+        if (PicocPlatformSetExitPoint(&pc))
         {
             PicocCleanup(&pc);
             return pc.PicocExitValue;
diff --git a/picoc.h b/picoc.h
index 5b3395e..2ac0f06 100644
--- a/picoc.h
+++ b/picoc.h
@@ -22,18 +22,15 @@
 #if defined(UNIX_HOST) || defined(WIN32)
 #include <setjmp.h>
 
-/* mark where to end the program for platforms which require this */
-extern jmp_buf PicocExitBuf;
-
 /* this has to be a macro, otherwise errors will occur due to the stack being corrupt */
-#define PicocPlatformSetExitPoint() setjmp(PicocExitBuf)
+#define PicocPlatformSetExitPoint(pc) setjmp((pc)->PicocExitBuf)
 #endif
 
 #ifdef SURVEYOR_HOST
 /* mark where to end the program for platforms which require this */
 extern int PicocExitBuf[];
 
-#define PicocPlatformSetExitPoint() setjmp(PicocExitBuf)
+#define PicocPlatformSetExitPoint(pc) setjmp((pc)->PicocExitBuf)
 #endif
 
 /* parse.c */