diff --git a/src/main/groovy/org/spongepowered/asm/gradle/plugins/MixinExtension.groovy b/src/main/groovy/org/spongepowered/asm/gradle/plugins/MixinExtension.groovy
index 5acb560..9b9f28b 100644
--- a/src/main/groovy/org/spongepowered/asm/gradle/plugins/MixinExtension.groovy
+++ b/src/main/groovy/org/spongepowered/asm/gradle/plugins/MixinExtension.groovy
@@ -1052,6 +1052,8 @@ public class MixinExtension {
                 def configureReobfTaskTask = project.tasks.maybeCreate("configureReobfTaskFor${reobfTask.name.capitalize()}", configureReobfTaskType).configure {
                     delegate.reobfTask = reobfTask
                     mappingFiles += tsrgFile
+                    // tsrgFile is generated by compileTask
+                    dependsOn(compileTask)
                 }
                 reobfTask.dependsOn configureReobfTaskTask
             }