diff --git a/build/lib/compilation.js b/build/lib/compilation.js
index 6fecf3f9ae5..71181f8aa07 100644
--- a/build/lib/compilation.js
+++ b/build/lib/compilation.js
@@ -37,6 +37,9 @@ function createCompile(src, build, emitError) {
     const sourcemaps = require('gulp-sourcemaps');
     const projectPath = path.join(__dirname, '../../', src, 'tsconfig.json');
     const overrideOptions = Object.assign(Object.assign({}, getTypeScriptCompilerOptions(src)), { inlineSources: Boolean(build) });
+	if (!build) {
+		overrideOptions.inlineSourceMap = true;
+	}
     const compilation = tsb.create(projectPath, overrideOptions, false, err => reporter(err));
     function pipeline(token) {
         const bom = require('gulp-bom');
diff --git a/build/lib/compilation.ts b/build/lib/compilation.ts
index 62fbea67b24..3db8cf0f917 100644
--- a/build/lib/compilation.ts
+++ b/build/lib/compilation.ts
@@ -44,6 +44,9 @@ function createCompile(src: string, build: boolean, emitError?: boolean) {
 
 	const projectPath = path.join(__dirname, '../../', src, 'tsconfig.json');
 	const overrideOptions = { ...getTypeScriptCompilerOptions(src), inlineSources: Boolean(build) };
+	if (!build) {
+		overrideOptions.inlineSourceMap = true;
+	}
 
 	const compilation = tsb.create(projectPath, overrideOptions, false, err => reporter(err));