diff --git a/AUTHORS b/AUTHORS
index 691d6dbe..fb859a62 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -4,6 +4,7 @@ Maintainer:
 
 Contributors:
 
+	Alex Hudson <home@alexhudson.com>
 	Andreas Nilsson <andreasn@gnome.org>
 	Benjamin Podszun <benjamin.podszun@gmail.com>
 	Bertrand Lorentz <bertrand.lorentz@gmail.com>
diff --git a/SparkleShare/Nautilus/Makefile.am b/SparkleShare/Nautilus/Makefile.am
index feb9a115..dedd2f6e 100644
--- a/SparkleShare/Nautilus/Makefile.am
+++ b/SparkleShare/Nautilus/Makefile.am
@@ -2,7 +2,7 @@ SOURCES =  \
 	sparkleshare-nautilus-extension.py
 
 if NAUTILUS_EXTENSION_ENABLED
-NAUTILUS_PYTHON_INSTALL_DIR=$(subst $(NAUTILUS_LIBDIR),${libdir},$(NAUTILUS_PYTHON_DIR))
+NAUTILUS_PYTHON_INSTALL_DIR=$(subst "$(NAUTILUS_LIBDIR)/","${libdir}/",$(NAUTILUS_PYTHON_DIR))
 extensiondir = $(NAUTILUS_PYTHON_INSTALL_DIR)
 extension_SCRIPTS = $(addprefix $(srcdir)/, $(SOURCES))
 else