diff --git a/llvm/lib/MC/MCExpr.cpp b/llvm/lib/MC/MCExpr.cpp
index 9d08fba378fb0..a7b980553af05 100644
--- a/llvm/lib/MC/MCExpr.cpp
+++ b/llvm/lib/MC/MCExpr.cpp
@@ -606,6 +606,11 @@ static void AttemptToFoldSymbolOffsetDifference(
     return;
 
   auto FinalizeFolding = [&]() {
+    // Pointers to Thumb symbols need to have their low-bit set to allow
+    // for interworking.
+    if (Asm->isThumbFunc(&SA))
+      Addend |= 1;
+
     // If symbol is labeled as micromips, we set low-bit to ensure
     // correct offset in .gcc_except_table
     if (Asm->getBackend().isMicroMips(&SA))