diff --git a/Jamrules b/Jamrules
index f6cd45ce9e..f2c414d1ec 100644
--- a/Jamrules
+++ b/Jamrules
@@ -31,6 +31,10 @@ HAIKU_DOWNLOAD_DIR					?= [ FDirName $(HAIKU_OUTPUT_DIR)
 HAIKU_OPTIONAL_BUILD_PACKAGES_DIR	?= [ FDirName $(HAIKU_OUTPUT_DIR)
 											build_packages ] ;
 
+# Absolutely rooted versions of some of the main directories
+HAIKU_ABSOLUTE_TOP					?= [ FDirName $(PWD) $(HAIKU_TOP) ] ;
+HAIKU_ABSOLUTE_OUTPUT_DIR			?= [ FDirName $(HAIKU_ABSOLUTE_TOP) generated ] ;
+
 # Cache files for header scanning and jamfile caching
 HCACHEFILE = header_cache ;
 JCACHEFILE = jamfile_cache ;
diff --git a/build/jam/ImageRules b/build/jam/ImageRules
index bd1b1ce825..cbcfab7874 100644
--- a/build/jam/ImageRules
+++ b/build/jam/ImageRules
@@ -1383,7 +1383,8 @@ rule BuildNetBootArchive archive : scripts
 	SEARCH on $(mainScript) = [ FDirName $(HAIKU_TOP) build scripts ] ;
 
 	Depends $(archive) : $(mainScript) $(scripts) ;
-	BuildNetBootArchive1 $(archive) : $(mainScript) $(scripts) ;
+	BuildNetBootArchive1 $(archive) : $(mainScript)
+		$(scripts:R=$(HAIKU_ABSOLUTE_OUTPUT_DIR)) ;
 }
 
 actions BuildNetBootArchive1
@@ -1474,7 +1475,8 @@ rule BuildFloppyBootArchive archive : scripts
 	SEARCH on $(mainScript) = [ FDirName $(HAIKU_TOP) build scripts ] ;
 
 	Depends $(archive) : $(mainScript) $(scripts) ;
-	BuildFloppyBootArchive1 $(archive) : $(mainScript) $(scripts) ;
+	BuildFloppyBootArchive1 $(archive) : $(mainScript)
+		$(scripts:R=$(HAIKU_ABSOLUTE_OUTPUT_DIR)) ;
 }
 
 actions BuildFloppyBootArchive1