diff --git a/src/compiler/compile/Component.ts b/src/compiler/compile/Component.ts
index ee24fc700c..58d7db39ba 100644
--- a/src/compiler/compile/Component.ts
+++ b/src/compiler/compile/Component.ts
@@ -90,15 +90,6 @@ export default class Component {
 	file: string;
 	locate: (c: number) => { line: number; column: number };
 
-	// TODO this does the same as component.locate! remove one or the other
-	locator: (
-		search: number,
-		startIndex?: number
-	) => {
-		line: number;
-		column: number;
-	};
-
 	stylesheet: Stylesheet;
 
 	aliases: Map<string, Identifier> = new Map();
@@ -140,7 +131,7 @@ export default class Component {
 					.replace(process.cwd(), '')
 					.replace(/^[/\\]/, '')
 				: compile_options.filename);
-		this.locate = getLocator(this.source);
+		this.locate = getLocator(this.source, { offsetLine: 1 });
 
 		// styles
 		this.stylesheet = new Stylesheet(
@@ -438,12 +429,8 @@ export default class Component {
 			return;
 		}
 
-		if (!this.locator) {
-			this.locator = getLocator(this.source, { offsetLine: 1 });
-		}
-
-		const start = this.locator(pos.start);
-		const end = this.locator(pos.end);
+		const start = this.locate(pos.start);
+		const end = this.locate(pos.end);
 
 		const frame = get_code_frame(this.source, start.line - 1, start.column);
 
@@ -456,7 +443,7 @@ export default class Component {
 			pos: pos.start,
 			filename: this.compile_options.filename,
 			toString: () =>
-				`${warning.message} (${start.line + 1}:${start.column})\n${frame}`,
+				`${warning.message} (${start.line}:${start.column})\n${frame}`,
 		});
 	}
 
diff --git a/src/compiler/compile/render_dom/wrappers/DebugTag.ts b/src/compiler/compile/render_dom/wrappers/DebugTag.ts
index 87e186f3b4..dc3a2f2857 100644
--- a/src/compiler/compile/render_dom/wrappers/DebugTag.ts
+++ b/src/compiler/compile/render_dom/wrappers/DebugTag.ts
@@ -30,7 +30,6 @@ export default class DebugTagWrapper extends Wrapper {
 		const { var_lookup } = component;
 
 		const start = component.locate(this.node.start + 1);
-		start.line += 1;
 		const end = { line: start.line, column: start.column + 6 };
 
 		const loc = { start, end };
diff --git a/src/compiler/compile/render_dom/wrappers/EachBlock.ts b/src/compiler/compile/render_dom/wrappers/EachBlock.ts
index 5c8d193f56..922679c39f 100644
--- a/src/compiler/compile/render_dom/wrappers/EachBlock.ts
+++ b/src/compiler/compile/render_dom/wrappers/EachBlock.ts
@@ -108,7 +108,6 @@ export default class EachBlockWrapper extends Wrapper {
 		let c = this.node.start + 2;
 		while (renderer.component.source[c] !== 'e') c += 1;
 		const start = renderer.component.locate(c);
-		start.line += 1;
 		const end = { line: start.line, column: start.column + 4 };
 		const length = {
 			type: 'Identifier',
diff --git a/src/compiler/compile/render_dom/wrappers/Element/index.ts b/src/compiler/compile/render_dom/wrappers/Element/index.ts
index 3f1b411966..d7c1c7686b 100644
--- a/src/compiler/compile/render_dom/wrappers/Element/index.ts
+++ b/src/compiler/compile/render_dom/wrappers/Element/index.ts
@@ -354,7 +354,7 @@ export default class ElementWrapper extends Wrapper {
 		if (renderer.options.dev) {
 			const loc = renderer.locate(this.node.start);
 			block.chunks.hydrate.push(
-				b`@add_location(${this.var}, ${renderer.file_var}, ${loc.line}, ${loc.column}, ${this.node.start});`
+				b`@add_location(${this.var}, ${renderer.file_var}, ${loc.line - 1}, ${loc.column}, ${this.node.start});`
 			);
 		}
 	}
diff --git a/src/compiler/compile/render_dom/wrappers/shared/create_debugging_comment.ts b/src/compiler/compile/render_dom/wrappers/shared/create_debugging_comment.ts
index df1ae9ff8e..e2aa0c0b41 100644
--- a/src/compiler/compile/render_dom/wrappers/shared/create_debugging_comment.ts
+++ b/src/compiler/compile/render_dom/wrappers/shared/create_debugging_comment.ts
@@ -26,7 +26,7 @@ export default function create_debugging_comment(
 	}
 
 	const start = locate(c);
-	const loc = `(${start.line + 1}:${start.column})`;
+	const loc = `(${start.line}:${start.column})`;
 
 	return `${loc} ${source.slice(c, d)}`.replace(/\s/g, ' ');
 }
diff --git a/src/compiler/compile/render_ssr/handlers/DebugTag.ts b/src/compiler/compile/render_ssr/handlers/DebugTag.ts
index 6955d1d1e6..99323a9c4d 100644
--- a/src/compiler/compile/render_ssr/handlers/DebugTag.ts
+++ b/src/compiler/compile/render_ssr/handlers/DebugTag.ts
@@ -12,5 +12,5 @@ export default function(node: DebugTag, renderer: Renderer, options: RenderOptio
 		${node.expressions.map(e => p`${e.node.name}`)}
 	}`;
 
-	renderer.add_expression(x`@debug(${filename ? x`"${filename}"` : x`null`}, ${line}, ${column}, ${obj})`);
+	renderer.add_expression(x`@debug(${filename ? x`"${filename}"` : x`null`}, ${line - 1}, ${column}, ${obj})`);
 }