diff --git a/scripts/karma/karma.config.ts b/scripts/karma/karma.config.ts
index 6e7e2d50a3..65f0bfba4f 100644
--- a/scripts/karma/karma.config.ts
+++ b/scripts/karma/karma.config.ts
@@ -43,7 +43,7 @@ export function config(config) {
     // Source files that you wanna generate coverage for.
     // Do not include tests or libraries (these files will be instrumented by Istanbul)
     preprocessors: {
-      'dist/ionic-angular/**/!(*spec).js': ['coverage'],
+      'dist/ionic-angular/umd/**/!(*spec).js': ['coverage'],
       'dist/ionic-angular/**/*.js': ['sourcemap']
     },
     reporters: ['dots', 'coverage'],