1 files changed, 2 insertions, 1 deletions

diff --git a/dynasm/dasm_arm.h b/dynasm/dasm_arm.h
index 691cfdd7..d83cbbb3 100644
--- a/dynasm/dasm_arm.h
+++ b/dynasm/dasm_arm.h
@@ -211,7 +211,8 @@ void dasm_put(Dst_DECL, int start, ...)
       case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
       case DASM_REL_LG:
         n = (ins & 2047) - 10; pl = D->lglabels + n;
-        if (n >= 0) { CKPL(lg, LG); goto putrel; }  /* Bkwd rel or global. */
+        /* Bkwd rel or global. */
+        if (n >= 0) { CK(n>=10||*pl<0, RANGE_LG); CKPL(lg, LG); goto putrel; }
         pl += 10; n = *pl;
         if (n < 0) n = 0;  /* Start new chain for fwd rel if label exists. */
         goto linkrel;