diff --git a/plugins/bsc/install.rb b/plugins/bsc/install.rb
new file mode 100644
index 0000000..f960f51
--- /dev/null
+++ b/plugins/bsc/install.rb
@@ -0,0 +1 @@
+raise "Not ready yet"
diff --git a/plugins/ldap/install.rb b/plugins/ldap/install.rb
new file mode 100644
index 0000000..f960f51
--- /dev/null
+++ b/plugins/ldap/install.rb
@@ -0,0 +1 @@
+raise "Not ready yet"
diff --git a/plugins/mezuro/install.rb b/plugins/mezuro/install.rb
new file mode 100644
index 0000000..f960f51
--- /dev/null
+++ b/plugins/mezuro/install.rb
@@ -0,0 +1 @@
+raise "Not ready yet"
diff --git a/plugins/stoa/install.rb b/plugins/stoa/install.rb
new file mode 100644
index 0000000..f960f51
--- /dev/null
+++ b/plugins/stoa/install.rb
@@ -0,0 +1 @@
+raise "Not ready yet"
diff --git a/script/noosfero-plugins b/script/noosfero-plugins
index 5540c11..b954c0f 100755
--- a/script/noosfero-plugins
+++ b/script/noosfero-plugins
@@ -86,12 +86,18 @@ _enable(){
       echo "E: $plugin plugin does not exist!"
       return
     fi
-    dependencies_ok=true
-    dependencies_file="$source/dependencies.rb"
-    if ! run $dependencies_file; then
-      dependencies_ok=false
+    installation_ok=true
+    installation_file="$source/install.rb"
+    if ! run $installation_file; then
+      installation_ok=false
+    else
+      dependencies_ok=true
+      dependencies_file="$source/dependencies.rb"
+      if ! run $dependencies_file; then
+        dependencies_ok=false
+      fi
     fi
-    if [ "$dependencies_ok" = true ]; then
+    if [ "$installation_ok" = true ] && [ "$dependencies_ok" = true ]; then
       ln -s "$source" "$target"
       plugins_public_dir="$NOOSFERO_DIR/public/plugins"
       plugins_features_dir="$NOOSFERO_DIR/features/plugins"
@@ -100,7 +106,9 @@ _enable(){
       _say "$plugin enabled"
       run "$source/after_enable.rb"
       needs_migrate=true
-    else
+    elif [ "$installation_ok" = false ]; then
+      echo "W: failed to install $plugin; not enabling"
+    elif [ "$dependencies_ok" = false ]; then
       echo "W: failed to load dependencies for $plugin; not enabling"
     fi
   fi
--
libgit2 0.21.2