1 files changed, 2 insertions, 0 deletions
diff --git a/source/slang/slang-emit-source-writer.cpp b/source/slang/slang-emit-source-writer.cpp
index 985d0a0bf..27cbd1932 100644
--- a/source/slang/slang-emit-source-writer.cpp
+++ b/source/slang/slang-emit-source-writer.cpp
@@ -391,6 +391,7 @@ void SourceWriter::_emitLineDirectiveIfNeeded(const HumaneSourceLoc& sourceLocat
     auto mode = getLineDirectiveMode();
     switch (mode)
     {
+        case LineDirectiveMode::SourceMap:
         case LineDirectiveMode::None:
             return;
 
@@ -451,6 +452,7 @@ void SourceWriter::_emitLineDirective(const HumaneSourceLoc& sourceLocation)
         switch (mode)
         {
             default:
+            case LineDirectiveMode::SourceMap:
             case LineDirectiveMode::None:
                 SLANG_UNEXPECTED("should not be trying to emit '#line' directive");
                 return;