diff --git a/Makefile b/Makefile
index a1cad143a..8268c18ea 100644
--- a/Makefile
+++ b/Makefile
@@ -256,7 +256,7 @@ ifeq (${SANITIZER},memory)
 # external libraries turned off or re-built with instrumentation.
 # This sanitizer is only implemented by clang.
 OPTIMIZE_FLAGS += -fsanitize=memory -fno-omit-frame-pointer -fPIC \
- -fsanitize-recover=memory -fsanitize-memory-track-origins=2
+ -fsanitize-memory-track-origins=2
 ARCH_EXE_LDFLAGS += -pie
 endif
 
diff --git a/src/legacy_robot.c b/src/legacy_robot.c
index 800b95ede..ea3fe83ee 100644
--- a/src/legacy_robot.c
+++ b/src/legacy_robot.c
@@ -51,6 +51,7 @@ static boolean legacy_load_robot_v1(struct world *mzx_world, struct robot *cur_r
   int program_v2_length;
 
   create_blank_robot(cur_robot);
+  cur_robot->world_version = mzx_world->version;
 
   program_v1_length = vfgetw(vf);
   vfgetw(vf); // Unused high bytes