diff --git a/src/org/jruby/ext/posix/BaseNativePOSIX.java b/src/org/jruby/ext/posix/BaseNativePOSIX.java
index a8c8ca5c..d349289b 100644
--- a/src/org/jruby/ext/posix/BaseNativePOSIX.java
+++ b/src/org/jruby/ext/posix/BaseNativePOSIX.java
@@ -288,11 +288,11 @@ public boolean isatty(FileDescriptor fd) {
     }
 
     public int errno() {
-        return LastError.getLastError();
+        return LastError.getLastError(getRuntime());
     }
 
     public void errno(int value) {
-        LastError.setLastError(value);
+        LastError.setLastError(getRuntime(), value);
     }
 
     public boolean isNative() {