diff --git a/publish.gradle b/publish.gradle
index 689e0bc0c2..87124750ed 100644
--- a/publish.gradle
+++ b/publish.gradle
@@ -104,17 +104,19 @@ if (project.hasProperty("signing.gnupg.keyName")) {
     }
     // Workaround to make test tasks use sign
     project.getTasks().withType(Sign.class).configureEach { signTask ->
-        def pubName = signTask.name.removePrefix("sign").removeSuffix("Publication")
-
+        def withoutSign = (signTask.name.startsWith("sign") ? signTask.name.minus("sign") : signTask.name)
+        def pubName = withoutSign.endsWith("Publication") ? withoutSign.substring(0, withoutSign.length() - "Publication".length()) : withoutSign
         // These tasks only exist for native targets, hence findByName() to avoid trying to find them for other targets
 
         // Task ':linkDebugTest<platform>' uses this output of task ':sign<platform>Publication' without declaring an explicit or implicit dependency
-        tasks.findByName("linkDebugTest$pubName")?.let {
-            signTask.mustRunAfter(it)
+        def debugTestTask = tasks.findByName("linkDebugTest$pubName")
+        if (debugTestTask != null) {
+            signTask.mustRunAfter(debugTestTask)
         }
         // Task ':compileTestKotlin<platform>' uses this output of task ':sign<platform>Publication' without declaring an explicit or implicit dependency
-        tasks.findByName("compileTestKotlin$pubName")?.let {
-            signTask.mustRunAfter(it)
+        def testTask = tasks.findByName("compileTestKotlin$pubName")
+        if (testTask != null) {
+            signTask.mustRunAfter(testTask)
         }
     }
 }