diff --git a/build.gradle b/build.gradle
index 100f1a804c..504238f0ad 100644
--- a/build.gradle
+++ b/build.gradle
@@ -96,10 +96,12 @@ allprojects {
             }
             gradle.projectsEvaluated {
                 tasks.withType(JavaCompile).configureEach {
+                    // Make sure the frameworkJar is always first in the classpath.
                     classpath = files(frameworkJar, classpath)
                 }
                 tasks.withType(KotlinCompile).configureEach {
-                    libraries.from(files(frameworkJar))
+                    // Make sure the frameworkJar is always first in the classpath.
+                    libraries.setFrom files(frameworkJar, libraries)
                 }
             }
             dependencies {