diff --git a/example/Atua.forth b/example/Atua.forth
index 9af3e67..b3bc5d9 100755
--- a/example/Atua.forth
+++ b/example/Atua.forth
@@ -1,4 +1,4 @@
-#!/usr/bin/rre
+#!/usr/bin/env retro
 
 # Atua: A Gopher Server
 
diff --git a/interfaces/rre.c b/interfaces/rre.c
index 3d0440c..4512873 100644
--- a/interfaces/rre.c
+++ b/interfaces/rre.c
@@ -261,6 +261,14 @@ void rre_execute(CELL cell, int silent) {
       printf("At %d, opcode %d\n", ip, opcode);
 #ifdef USE_TERMIOS
       restore_term();
+#endif
+      exit(1);
+    }
+    if (sp < 0 || sp > STACK_DEPTH) {
+      printf("Stack Limits Exceeded!\n");
+      printf("At %d, opcode %d\n", ip, opcode);
+#ifdef USE_TERMIOS
+      restore_term();
 #endif
       exit(1);
     }