diff --git a/internal/js_printer/js_printer.go b/internal/js_printer/js_printer.go
index a5b59cf1ff8..8ab2d833812 100644
--- a/internal/js_printer/js_printer.go
+++ b/internal/js_printer/js_printer.go
@@ -329,6 +329,7 @@ func (p *printer) printJSXTag(tagOrNil js_ast.Expr) {
 }
 
 type printer struct {
+    file				   string
 	symbols                js_ast.SymbolMap
 	isUnbound              func(js_ast.Ref) bool
 	renamer                renamer.Renamer
@@ -1759,17 +1760,9 @@ func (p *printer) printExpr(expr js_ast.Expr, level js_ast.L, flags printExprFla
 
 	// findme
 	// instrument
-	// p.print(fmt.Sprintf("__INST(%d, null, ", int(expr.Loc.Start)))
-
-	// p.print(fmt.Sprintf("__INST(%07d, null, ", int(expr.Loc.Start)+4*len(p.js)+22-12))
-
 	p.addSourceMapping(expr.Loc)
-	// p.builder.UpdateGeneratedLineAndColumn(p.js)
-
-	var fileName = strings.Split(string(p.js), "\n")[0]
-
-	p.print(fmt.Sprintf("__INST(%d,%d, %s, ", p.builder.GetPrevGeneratedLine(),
-		p.builder.GetPrevGeneratedColumn(), fileName))
+	p.print(fmt.Sprintf("__INST(%d,%d,null,null,'%s',", p.builder.GetOriginalLine(),
+		p.builder.GetOriginalColumn(), p.file))
 
 	// If syntax compression is enabled, do a pre-pass over unary and binary
 	// operators to inline bitwise operations of cross-module inlined constants.
@@ -4548,8 +4541,10 @@ type PrintResult struct {
 	SourceMapChunk sourcemap.Chunk
 }
 
-func Print(tree js_ast.AST, symbols js_ast.SymbolMap, r renamer.Renamer, options Options) PrintResult {
+// findme print
+func Print(tree js_ast.AST, symbols js_ast.SymbolMap, r renamer.Renamer, options Options, file string) PrintResult {
 	p := &printer{
+    	file: file,
 		symbols:       symbols,
 		renamer:       r,
 		importRecords: tree.ImportRecords,
diff --git a/internal/linker/linker.go b/internal/linker/linker.go
index 86d85ad6d97..8ec93cd2075 100644
--- a/internal/linker/linker.go
+++ b/internal/linker/linker.go
@@ -4118,7 +4118,7 @@ func (c *linkerContext) generateCodeForFileInChunkJS(
 	tree.Directive = "" // This is handled elsewhere
 	tree.Parts = []js_ast.Part{{Stmts: stmts}}
 	*result = compileResultJS{
-		PrintResult: js_printer.Print(tree, c.graph.Symbols, r, printOptions),
+		PrintResult: js_printer.Print(tree, c.graph.Symbols, r, printOptions, file.InputFile.Source.PrettyPath),
 		sourceIndex: partRange.sourceIndex,
 	}
 
@@ -4435,7 +4435,7 @@ func (c *linkerContext) generateEntryPointTailJS(
 		RequireOrImportMetaForSource: c.requireOrImportMetaForSource,
 		MangledProps:                 c.mangledProps,
 	}
-	result.PrintResult = js_printer.Print(tree, c.graph.Symbols, r, printOptions)
+	result.PrintResult = js_printer.Print(tree, c.graph.Symbols, r, printOptions, file.InputFile.Source.PrettyPath)
 	return
 }
 
@@ -4761,12 +4761,12 @@ func (c *linkerContext) generateChunkJS(chunkIndex int, chunkWaitGroup *sync.Wai
 		crossChunkResult := js_printer.Print(js_ast.AST{
 			ImportRecords: crossChunkImportRecords,
 			Parts:         []js_ast.Part{{Stmts: chunkRepr.crossChunkPrefixStmts}},
-		}, c.graph.Symbols, r, printOptions)
+		}, c.graph.Symbols, r, printOptions, "")
 		crossChunkPrefix = crossChunkResult.JS
 		jsonMetadataImports = crossChunkResult.JSONMetadataImports
 		crossChunkSuffix = js_printer.Print(js_ast.AST{
 			Parts: []js_ast.Part{{Stmts: chunkRepr.crossChunkSuffixStmts}},
-		}, c.graph.Symbols, r, printOptions).JS
+		}, c.graph.Symbols, r, printOptions, "").JS
 	}
 
 	// Generate the exports for the entry point, if there are any
diff --git a/internal/sourcemap/sourcemap.go b/internal/sourcemap/sourcemap.go
index 88bad0d1bba..8fb8598cb29 100644
--- a/internal/sourcemap/sourcemap.go
+++ b/internal/sourcemap/sourcemap.go
@@ -726,19 +726,14 @@ func (b *ChunkBuilder) GenerateChunk(output []byte) Chunk {
 	}
 }
 
-func (b *ChunkBuilder) GetPrevGeneratedLine() int {
-	return b.prevState.GeneratedLine
+func (b *ChunkBuilder) GetOriginalLine() int {
+	return int(b.prevState.OriginalLine)
 }
 
-func (b *ChunkBuilder) GetPrevGeneratedColumn() int {
-	return b.prevState.GeneratedColumn
+func (b *ChunkBuilder) GetOriginalColumn() int {
+	return int(b.prevState.OriginalColumn)
 }
 
-func (b *ChunkBuilder) GetPrevOriginalName() string {
-	return b.prevOriginalName
-}
-
-
 // Scan over the printed text since the last source mapping and update the
 // generated line and column numbers
 func (b *ChunkBuilder) updateGeneratedLineAndColumn(output []byte) {