diff --git a/src/hotspot/share/c1/c1_RangeCheckElimination.cpp b/src/hotspot/share/c1/c1_RangeCheckElimination.cpp
index 198b5afeb7b..fc5df4a4201 100644
--- a/src/hotspot/share/c1/c1_RangeCheckElimination.cpp
+++ b/src/hotspot/share/c1/c1_RangeCheckElimination.cpp
@@ -1001,7 +1001,7 @@ void RangeCheckEliminator::calc_bounds(BlockBegin *block, BlockBegin *loop_heade
           } else {
             // Has no upper bound
             Instruction *instr = ai->length();
-            if (instr != NULL) instr = ai->array();
+            if (instr == NULL) instr = ai->array();
             update_bound(pushed, ai->index(), Instruction::lss, instr, 0);
           }
         }