diff --git a/mozilla/config/rules.mak b/mozilla/config/rules.mak
index 8e3ae4c7d6a..5561fe6c836 100644
--- a/mozilla/config/rules.mak
+++ b/mozilla/config/rules.mak
@@ -591,8 +591,6 @@ chrome::
 
 install:: chrome
 
-!ifndef MOZ_OLD_JAR_PACKAGING
-
 !ifdef MOZ_DISABLE_JAR_PACKAGING
 _JAR_FLAT_FILES_ONLY=-f
 _JAR_REGCHROME_JAR=1
@@ -601,6 +599,10 @@ _JAR_FLAT_FILES_ONLY=
 _JAR_REGCHROME_JAR=0
 !endif
 
+REGCHROME = @perl $(DEPTH)\config\add-chrome.pl $(DIST)\bin\chrome\installed-chrome.txt $(_JAR_REGCHROME_JAR)
+
+!ifndef MOZ_OLD_JAR_PACKAGING
+
 !if exist($(JAR_MANIFEST))
 
 chrome::
@@ -608,8 +610,6 @@ chrome::
 
 !endif
 
-REGCHROME = @perl $(DEPTH)\config\add-chrome.pl $(DIST)\bin\chrome\installed-chrome.txt $(_JAR_REGCHROME_JAR)
-
 regchrome:
 
 !else # !MOZ_OLD_JAR_PACKAGING