diff --git a/build/jam/Haiku64Image b/build/jam/Haiku64Image
index 9b6795ba61..4d4ec6b871 100644
--- a/build/jam/Haiku64Image
+++ b/build/jam/Haiku64Image
@@ -373,7 +373,7 @@ SEARCH on $(postInstallFiles)
 	= [ FDirName $(HAIKU_TOP) data common boot post_install ] ;
 SEARCH on <post-install>fresh_install
 	= [ FDirName $(HAIKU_TOP) data common settings ] ;
-AddFilesToHaikuImage common boot post_install : $(postInstallFiles) ;
+AddFilesToHaikuImage common boot post-install : $(postInstallFiles) ;
 AddFilesToHaikuImage common settings : <post-install>fresh_install ;
 
 # boot loader
diff --git a/build/jam/packages/Haiku b/build/jam/packages/Haiku
index 435363fad1..08f57a5c62 100644
--- a/build/jam/packages/Haiku
+++ b/build/jam/packages/Haiku
@@ -179,7 +179,7 @@ local postInstallFiles = add_catalog_entry_attributes.sh
 postInstallFiles = $(postInstallFiles:G=post-install) ;
 SEARCH on $(postInstallFiles)
 	= [ FDirName $(HAIKU_TOP) data common boot post_install ] ;
-AddFilesToPackage boot post_install : $(postInstallFiles) ;
+AddFilesToPackage boot post-install : $(postInstallFiles) ;
 
 # Gutenprint data files
 CopyDirectoryToPackage data
diff --git a/data/system/boot/Bootscript b/data/system/boot/Bootscript
index e37d49dbd5..9fd1b18f93 100644
--- a/data/system/boot/Bootscript
+++ b/data/system/boot/Bootscript
@@ -193,7 +193,7 @@ fi
 
 # Check for fresh install and run post install scripts.
 freshInstallIndicator=/boot/common/settings/fresh_install
-postInstallDir=boot/post_install
+postInstallDir=boot/post-install
 if [ -e $freshInstallIndicator ]; then
 	# wait a moment for things to calm down a bit
 	sleep 3