diff --git a/lib/system/mmdisp.nim b/lib/system/mmdisp.nim
index 89bc11d2c3..9cc7ab3231 100644
--- a/lib/system/mmdisp.nim
+++ b/lib/system/mmdisp.nim
@@ -72,6 +72,8 @@ when defined(boehmgc):
   proc boehmGCincremental {.
     importc: "GC_enable_incremental", boehmGC.}
   proc boehmGCfullCollect {.importc: "GC_gcollect", boehmGC.}
+  proc boehmGC_set_all_interior_pointers(flag: cint) {.
+    importc: "GC_set_all_interior_pointers", boehmGC.}
   proc boehmAlloc(size: int): pointer {.importc: "GC_malloc", boehmGC.}
   proc boehmAllocAtomic(size: int): pointer {.
     importc: "GC_malloc_atomic", boehmGC.}
@@ -148,6 +150,7 @@ when defined(boehmgc):
     proc nimGC_setStackBottom(theStackBottom: pointer) = discard
 
   proc initGC() =
+    boehmGC_set_all_interior_pointers(0)
     boehmGCinit()
     when hasThreadSupport:
       boehmGC_allow_register_threads()