diff --git a/library/extractor/build.gradle b/library/extractor/build.gradle
index 8858b3eeec..6d402d3be1 100644
--- a/library/extractor/build.gradle
+++ b/library/extractor/build.gradle
@@ -41,6 +41,7 @@ dependencies {
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
     implementation project(modulePrefix + 'library-common')
+    testImplementation project(modulePrefix + 'library-core')
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }