diff --git a/bolt/include/bolt/Core/DebugData.h b/bolt/include/bolt/Core/DebugData.h
index 2e3dc36d181d..35b7cd014978 100644
--- a/bolt/include/bolt/Core/DebugData.h
+++ b/bolt/include/bolt/Core/DebugData.h
@@ -600,7 +600,7 @@ public:
 
   /// Emit the Dwarf file and the line tables for a given CU.
   void emitCU(MCStreamer *MCOS, MCDwarfLineTableParams Params,
-              Optional<MCDwarfLineStr> &LineStr) const;
+              Optional<MCDwarfLineStr> &LineStr, BinaryContext &BC) const;
 
   Expected<unsigned> tryGetFile(StringRef &Directory, StringRef &FileName,
                                 Optional<MD5::MD5Result> Checksum,
diff --git a/bolt/lib/Core/DebugData.cpp b/bolt/lib/Core/DebugData.cpp
index 90f2cf8d342e..ec74ef3bbbf0 100644
--- a/bolt/lib/Core/DebugData.cpp
+++ b/bolt/lib/Core/DebugData.cpp
@@ -782,7 +782,8 @@ static inline void emitDwarfLineTable(
 }
 
 void DwarfLineTable::emitCU(MCStreamer *MCOS, MCDwarfLineTableParams Params,
-                            Optional<MCDwarfLineStr> &LineStr) const {
+                            Optional<MCDwarfLineStr> &LineStr,
+                            BinaryContext &BC) const {
   if (!RawData.empty()) {
     assert(MCLineSections.getMCLineEntries().empty() &&
            InputSequences.empty() &&
@@ -790,6 +791,14 @@ void DwarfLineTable::emitCU(MCStreamer *MCOS, MCDwarfLineTableParams Params,
     MCOS->emitLabel(getLabel());
     MCOS->emitBytes(RawData);
 
+    // Emit fake relocation for RuntimeDyld to always allocate the section.
+    //
+    // FIXME: remove this once RuntimeDyld stops skipping allocatable sections
+    //        without relocations.
+    MCOS->emitRelocDirective(
+        *MCConstantExpr::create(0, *BC.Ctx), "BFD_RELOC_NONE",
+        MCSymbolRefExpr::create(getLabel(), *BC.Ctx), SMLoc(), *BC.STI);
+
     return;
   }
 
@@ -830,7 +839,7 @@ void DwarfLineTable::emit(BinaryContext &BC, MCStreamer &Streamer) {
 
   // Handle the rest of the Compile Units.
   for (auto &CUIDTablePair : LineTables) {
-    CUIDTablePair.second.emitCU(&Streamer, Params, LineStr);
+    CUIDTablePair.second.emitCU(&Streamer, Params, LineStr, BC);
   }
 }
 
diff --git a/bolt/test/Inputs/hello.c b/bolt/test/Inputs/hello.c
new file mode 100644
index 000000000000..150656567ad3
--- /dev/null
+++ b/bolt/test/Inputs/hello.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() {
+  printf("Hello, world!\n");
+
+  return 0;
+}
diff --git a/bolt/test/non-empty-debug-line.test b/bolt/test/non-empty-debug-line.test
new file mode 100644
index 000000000000..0922adede523
--- /dev/null
+++ b/bolt/test/non-empty-debug-line.test
@@ -0,0 +1,19 @@
+# Verifies that BOLT emits DWARF line table with the same size if
+# no functions with debug info were modified.
+
+RUN: %clang %S/Inputs/hello.c -g -o %t
+RUN: llvm-bolt %t -o %t1 -update-debug-sections -funcs=_start
+RUN: llvm-readobj -S %t > %t2
+RUN: llvm-readobj -S %t1 >> %t2
+RUN: FileCheck %s --input-file %t2
+
+# Check the input and grab .debug_line size.
+CHECK: File:
+CHECK: Name: .debug_line
+CHECK: Size: [[SIZE:[0-9]+]]
+
+# Verify .debug_line size is the same after BOLT.
+CHECK: File:
+CHECK: Name: .debug_line
+CHECK: Size:
+CHECK-SAME: [[SIZE]]