diff --git a/build/lib/compilation.js b/build/lib/compilation.js
index fd21452243..d668d11cae 100644
--- a/build/lib/compilation.js
+++ b/build/lib/compilation.js
@@ -40,6 +40,14 @@ function createCompile(src, build, emitError) {
     if (!build && !process.env['SQL_NO_INLINE_SOURCEMAP']) {
         overrideOptions.inlineSourceMap = true;
     }
+    else if (!build) {
+        console.warn('********************************************************************************************');
+        console.warn('* Inlining of source maps is DISABLED, which will prevent debugging from working properly, *');
+        console.warn('* but is required to generate code coverage reports.                                       *');
+        console.warn('* To re-enable inlining of source maps clear the SQL_NO_INLINE_SOURCEMAP environment var   *');
+        console.warn('* and re-run the build/watch task                                                          *');
+        console.warn('********************************************************************************************');
+    }
     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 9d1b5f57c0..9bc909bbe4 100644
--- a/build/lib/compilation.ts
+++ b/build/lib/compilation.ts
@@ -46,6 +46,13 @@ function createCompile(src: string, build: boolean, emitError?: boolean) {
 	const overrideOptions = { ...getTypeScriptCompilerOptions(src), inlineSources: Boolean(build) };
 	if (!build && !process.env['SQL_NO_INLINE_SOURCEMAP']) {
 		overrideOptions.inlineSourceMap = true;
+	} else if (!build) {
+		console.warn('********************************************************************************************');
+		console.warn('* Inlining of source maps is DISABLED, which will prevent debugging from working properly, *');
+		console.warn('* but is required to generate code coverage reports.                                       *');
+		console.warn('* To re-enable inlining of source maps clear the SQL_NO_INLINE_SOURCEMAP environment var   *');
+		console.warn('* and re-run the build/watch task                                                          *');
+		console.warn('********************************************************************************************');
 	}
 
 	const compilation = tsb.create(projectPath, overrideOptions, false, err => reporter(err));