diff --git a/fluxo-io-rad/src/commonJvmMain/resources/META-INF/proguard /fluxo-io-rad.pro b/fluxo-io-rad/src/commonJvmMain/resources/META-INF/proguard /fluxo-io-rad.pro
deleted file mode 100644
index e39ab52..0000000
--- a/fluxo-io-rad/src/commonJvmMain/resources/META-INF/proguard /fluxo-io-rad.pro	
+++ /dev/null
@@ -1,3 +0,0 @@
--keepnames class fluxo.io.SharedCloseable {
-  volatile *;
-}
diff --git a/fluxo-io-rad/src/commonJvmMain/resources/META-INF/proguard/fluxo-io-rad.pro b/fluxo-io-rad/src/commonJvmMain/resources/META-INF/proguard/fluxo-io-rad.pro
new file mode 100644
index 0000000..0aa2795
--- /dev/null
+++ b/fluxo-io-rad/src/commonJvmMain/resources/META-INF/proguard/fluxo-io-rad.pro
@@ -0,0 +1,4 @@
+# Protect atomicfu usages.
+-keepnames class fluxo.io.** {
+  volatile *;
+}