diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 1ab2b0ac1..113850bff 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -188,8 +188,15 @@ void initGC()
 
 #if HAVE_BOEHMGC
     /* Initialise the Boehm garbage collector. */
+
+    /* Don't look for interior pointers. This reduces the odds of
+       misdetection a bit. */
     GC_set_all_interior_pointers(0);
 
+    /* We don't have any roots in data segments, so don't scan from
+       there. */
+    GC_set_no_dls(1);
+
     GC_INIT();
 
     GC_set_oom_fn(oomHandler);