diff --git a/bin/Packager/Nsis/NullsoftInstaller.nsi b/bin/Packager/Nsis/NullsoftInstaller.nsi
--- a/bin/Packager/Nsis/NullsoftInstaller.nsi
+++ b/bin/Packager/Nsis/NullsoftInstaller.nsi
@@ -137,7 +137,7 @@
   WriteRegStr SHCTX "${uninstkey}" "DisplayVersion" "@{version}"
   WriteRegDWORD SHCTX "${uninstkey}" "EstimatedSize" "@{estimated_size}"
 
-  @{registy_hook}
+  @{registry_hook}
 
   SetOutPath $INSTDIR
 
@@ -185,4 +185,4 @@
 SectionEnd
 
 ;  allow to define additional Un.sections
-@{un_sections}
\ No newline at end of file
+@{un_sections}
diff --git a/bin/Packager/NullsoftInstallerPackager.py b/bin/Packager/NullsoftInstallerPackager.py
--- a/bin/Packager/NullsoftInstallerPackager.py
+++ b/bin/Packager/NullsoftInstallerPackager.py
@@ -81,7 +81,7 @@
         defines.setdefault("defaultinstdir", "$PROGRAMFILES64" if CraftCore.compiler.isX64() else "$PROGRAMFILES")
         defines.setdefault("multiuser_use_programfiles64", "!define MULTIUSER_USE_PROGRAMFILES64" if CraftCore.compiler.isX64() else "")
         defines.setdefault("srcdir", self.archiveDir())# deprecated
-        defines.setdefault("registy_hook", "")
+        defines.setdefault("registry_hook", "")
         defines.setdefault("sections", "")
         defines.setdefault("un_sections", "")
         defines.setdefault("sections_page", "")