diff --git a/subprojects/kotlin-dsl-plugins/src/integTest/kotlin/org/gradle/kotlin/dsl/plugins/precompiled/PrecompiledScriptPluginAccessorsTest.kt b/subprojects/kotlin-dsl-plugins/src/integTest/kotlin/org/gradle/kotlin/dsl/plugins/precompiled/PrecompiledScriptPluginAccessorsTest.kt
index 14be37be530b..16b79ac5f7a7 100644
--- a/subprojects/kotlin-dsl-plugins/src/integTest/kotlin/org/gradle/kotlin/dsl/plugins/precompiled/PrecompiledScriptPluginAccessorsTest.kt
+++ b/subprojects/kotlin-dsl-plugins/src/integTest/kotlin/org/gradle/kotlin/dsl/plugins/precompiled/PrecompiledScriptPluginAccessorsTest.kt
@@ -348,13 +348,22 @@ class PrecompiledScriptPluginAccessorsTest : AbstractPrecompiledScriptPluginTest
         val pluginJar = jarForPlugin(pluginId, "MyPlugin")
 
         withPrecompiledScriptApplying(pluginId, pluginJar)
+        assertPrecompiledScriptPluginApplies(
+            pluginId,
+            "Plugin_gradle"
+        )
+    }
+
+    private
+    fun assertPrecompiledScriptPluginApplies(pluginId: String, precompiledScriptClassName: String) {
+
         compileKotlin()
 
         val (project, pluginManager) = projectAndPluginManagerMocks()
 
         instantiatePrecompiledScriptOf(
             project,
-            "Plugin_gradle"
+            precompiledScriptClassName
         )
 
         inOrder(pluginManager) {
@@ -363,6 +372,27 @@ class PrecompiledScriptPluginAccessorsTest : AbstractPrecompiledScriptPluginTest
         }
     }
 
+    @Test
+    fun `can use plugin specs with jruby-gradle-plugin`() {
+
+        withKotlinDslPlugin().appendText("""
+            dependencies {
+                compile("com.github.jruby-gradle:jruby-gradle-plugin:1.4.0")
+            }
+        """)
+
+        withPrecompiledKotlinScript("plugin.gradle.kts", """
+            plugins {
+                com.github.`jruby-gradle`.base
+            }
+        """)
+
+        assertPrecompiledScriptPluginApplies(
+            "com.github.jruby-gradle.base",
+            "Plugin_gradle"
+        )
+    }
+
     @Test
     fun `plugin application errors are reported but don't cause the build to fail`() {
 
diff --git a/subprojects/kotlin-dsl/src/main/kotlin/org/gradle/kotlin/dsl/codegen/PluginIdExtensions.kt b/subprojects/kotlin-dsl/src/main/kotlin/org/gradle/kotlin/dsl/codegen/PluginIdExtensions.kt
index 4d6dafc6e76a..2b5259406701 100644
--- a/subprojects/kotlin-dsl/src/main/kotlin/org/gradle/kotlin/dsl/codegen/PluginIdExtensions.kt
+++ b/subprojects/kotlin-dsl/src/main/kotlin/org/gradle/kotlin/dsl/codegen/PluginIdExtensions.kt
@@ -22,6 +22,7 @@ import org.gradle.plugin.use.PluginDependencySpec
 import java.io.File
 
 import java.util.Properties
+import java.util.jar.JarEntry
 import java.util.jar.JarFile
 
 
@@ -248,7 +249,7 @@ internal
 fun pluginEntriesFrom(jar: File): List<PluginEntry> =
     JarFile(jar).use { jarFile ->
         jarFile.entries().asSequence().filter {
-            it.isFile && it.name.startsWith("META-INF/gradle-plugins/")
+            isGradlePluginPropertiesFile(it)
         }.map { pluginEntry ->
             val pluginProperties = jarFile.getInputStream(pluginEntry).use { Properties().apply { load(it) } }
             val id = pluginEntry.name.substringAfterLast("/").substringBeforeLast(".properties")
@@ -256,3 +257,9 @@ fun pluginEntriesFrom(jar: File): List<PluginEntry> =
             PluginEntry(id, implementationClass)
         }.toList()
     }
+
+
+private
+fun isGradlePluginPropertiesFile(entry: JarEntry) = entry.run {
+    isFile && name.run { startsWith("META-INF/gradle-plugins/") && endsWith(".properties") }
+}