diff --git a/src/coreclr/jit/fgopt.cpp b/src/coreclr/jit/fgopt.cpp
index 985b7e864ce34d..5f029de9a8f2b6 100644
--- a/src/coreclr/jit/fgopt.cpp
+++ b/src/coreclr/jit/fgopt.cpp
@@ -3799,6 +3799,7 @@ bool Compiler::fgOptimizeSwitchJumps()
 
         // Update flags
         //
+        switchTree->gtFlags = switchTree->AsOp()->gtOp1->gtFlags;
         dominantCaseCompare->gtFlags |= dominantCaseCompare->AsOp()->gtOp1->gtFlags;
         jmpTree->gtFlags |= dominantCaseCompare->gtFlags;
         dominantCaseCompare->gtFlags |= GTF_RELOP_JMP_USED | GTF_DONT_CSE;