diff --git a/common/build.gradle b/common/build.gradle
index 2def9c0..01e10d2 100644
--- a/common/build.gradle
+++ b/common/build.gradle
@@ -26,6 +26,8 @@ final File buildConfigSrc = new File(buildDir,
 
 static void generateBuildConfig0(File buildConfigSrc, Project project) {
     buildConfigSrc.getParentFile().mkdirs()
+    final String FOXLOADER_TRANSFORMER_VERSION =
+            project['foxloader.lastReIndevTransformerChanges']
     final String FOXLOADER_VERSION = project['foxloader.version']
     final String SPARK_DEPENDENCY = project['spark.dependency']
     final String REINDEV_VERSION = project['reindev.version']
@@ -39,6 +41,9 @@ static void generateBuildConfig0(File buildConfigSrc, Project project) {
         printStream.println()
         printStream.println("public final class BuildConfig {")
         printStream.println("    private BuildConfig() {}")
+        printStream.println( // We don't want devs to patch + decompile every update
+                "    public static final String FOXLOADER_TRANSFORMER_VERSION = \"" +
+                        FOXLOADER_TRANSFORMER_VERSION + "\";")
         printStream.println("    public static final String FOXLOADER_VERSION = \"" + FOXLOADER_VERSION + "\";")
         printStream.println("    public static final String SPARK_DEPENDENCY = \"" + SPARK_DEPENDENCY + "\";")
         printStream.println("    public static final String REINDEV_VERSION = \"" + REINDEV_VERSION + "\";")
diff --git a/common/src/main/java/com/fox2code/foxloader/loader/PreLoader.java b/common/src/main/java/com/fox2code/foxloader/loader/PreLoader.java
index e7bbc8d..5aa91d0 100644
--- a/common/src/main/java/com/fox2code/foxloader/loader/PreLoader.java
+++ b/common/src/main/java/com/fox2code/foxloader/loader/PreLoader.java
@@ -83,6 +83,7 @@ static void addCoreMod(File coreMod) {
             throw new RuntimeException(e);
         }
         FoxLauncher.getFoxClassLoader().addCoreModURL(url);
+        FoxLauncher.getFoxClassLoader().addURL(url);
     }
 
     static void initializePrePatch(boolean client) {
diff --git a/dev/src/main/groovy/com/fox2code/foxloader/dev/GradlePlugin.groovy b/dev/src/main/groovy/com/fox2code/foxloader/dev/GradlePlugin.groovy
index d588264..3b83799 100644
--- a/dev/src/main/groovy/com/fox2code/foxloader/dev/GradlePlugin.groovy
+++ b/dev/src/main/groovy/com/fox2code/foxloader/dev/GradlePlugin.groovy
@@ -217,7 +217,8 @@ class GradlePlugin implements Plugin<Project> {
                         sideName + "-" + version + ".pom")
         injectPom(pom, "net.silveros", sideName, version)
         DependencyHelper.loadDevDependencies(foxLoaderCache, client)
-        final String versionFox = version + "-rfl_" + BuildConfig.FOXLOADER_VERSION
+        final String versionFox = version + "-rfl_" +
+                BuildConfig.FOXLOADER_TRANSFORMER_VERSION
         File jarFox = new File(foxLoaderCache,
                 "net/silveros/" + sideName + "/" + versionFox + "/" +
                         sideName + "-" + versionFox + ".jar")
diff --git a/final/build.gradle b/final/build.gradle
index f84eebc..94c84ae 100644
--- a/final/build.gradle
+++ b/final/build.gradle
@@ -29,6 +29,8 @@ jar {
 
     manifest {
         attributes 'Main-Class': 'com.fox2code.foxloader.installer.Main'
+        attributes 'FoxLoader-Transformer-Version':
+                project['foxloader.lastReIndevTransformerChanges']
         attributes 'FoxLoader-Version': project['foxloader.version']
         attributes 'ReIndev-Version': project['reindev.version']
     }
diff --git a/gradle.properties b/gradle.properties
index 49506aa..11260e3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,8 @@ org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx1024m -XX:-UseGCOverheadLimit -Dfile.encoding=UTF-8
 
 # FoxLoader properties
-foxloader.version=0.1.6
+foxloader.version=0.1.7
+foxloader.lastReIndevTransformerChanges=0.1.6
 
 # ReIndev properties
 reindev.clientUrl=https://cdn.fox2code.com/files/reindev_2.8_patched.jar