diff --git a/mx.fastr/native-image.properties b/mx.fastr/native-image.properties
index a70e3e70200bde35bb5e1ac05f92ce3cbaca2019..2350ea4bf0cdbd6b4bd3f997e2a314b6d1819770 100644
--- a/mx.fastr/native-image.properties
+++ b/mx.fastr/native-image.properties
@@ -12,5 +12,5 @@ JavaArgs = \
 
 Args = -H:Class=com.oracle.truffle.r.launcher.RCommand \
     -H:MaxRuntimeCompileMethods=8000 \
-    -H:TruffleCheckFrameImplementation=false \
-    -H:TruffleCheckNeverPartOfCompilation=true
+    -H:-TruffleCheckFrameImplementation \
+    -H:+TruffleCheckNeverPartOfCompilation