diff --git a/prog/_jBuild/jCommonRules.jam b/prog/_jBuild/jCommonRules.jam
index 8bfa57e61..3c37844b0 100644
--- a/prog/_jBuild/jCommonRules.jam
+++ b/prog/_jBuild/jCommonRules.jam
@@ -8,7 +8,7 @@ if $(OS) in MACOSX && $(PYTHON_EXE) = python3 && ! [ GLOB /usr/bin : $(PYTHON_EX
   PYTHON_EXE = python ;
 }
 
-actions together quietly null_action
+actions together quietly ignore null_action
 {
 }