diff --git a/yesod-bin/hsfiles/mongo.hsfiles b/yesod-bin/hsfiles/mongo.hsfiles
index e935e9e2..550759d1 100644
--- a/yesod-bin/hsfiles/mongo.hsfiles
+++ b/yesod-bin/hsfiles/mongo.hsfiles
@@ -397,9 +397,9 @@ library
 
     if flag(dev) || flag(library-only)
         cpp-options:   -DDEVELOPMENT
-        ghc-options:   -Wall -O0
+        ghc-options:   -Wall -fwarn-tabs -O0
     else
-        ghc-options:   -Wall -O2
+        ghc-options:   -Wall -fwarn-tabs -O2
 
     extensions: TemplateHaskell
                 QuasiQuotes
@@ -768,7 +768,8 @@ stanzas:
 # If you would like to have Keter automatically create a PostgreSQL database
 # and set appropriate environment variables for it to be discovered, uncomment
 # the following line.
-# postgres: true
+# plugins:
+#   postgres: true
 
 {-# START_FILE config/models #-}
 User
diff --git a/yesod-bin/hsfiles/mysql.hsfiles b/yesod-bin/hsfiles/mysql.hsfiles
index 5e0e22e2..684ebac8 100644
--- a/yesod-bin/hsfiles/mysql.hsfiles
+++ b/yesod-bin/hsfiles/mysql.hsfiles
@@ -403,9 +403,9 @@ library
 
     if flag(dev) || flag(library-only)
         cpp-options:   -DDEVELOPMENT
-        ghc-options:   -Wall -O0
+        ghc-options:   -Wall -fwarn-tabs -O0
     else
-        ghc-options:   -Wall -O2
+        ghc-options:   -Wall -fwarn-tabs -O2
 
     extensions: TemplateHaskell
                 QuasiQuotes
@@ -774,7 +774,8 @@ stanzas:
 # If you would like to have Keter automatically create a PostgreSQL database
 # and set appropriate environment variables for it to be discovered, uncomment
 # the following line.
-# postgres: true
+# plugins:
+#   postgres: true
 
 {-# START_FILE config/models #-}
 User
diff --git a/yesod-bin/hsfiles/postgres-fay.hsfiles b/yesod-bin/hsfiles/postgres-fay.hsfiles
index 1072f195..939094d1 100644
--- a/yesod-bin/hsfiles/postgres-fay.hsfiles
+++ b/yesod-bin/hsfiles/postgres-fay.hsfiles
@@ -439,9 +439,9 @@ library
 
     if flag(dev) || flag(library-only)
         cpp-options:   -DDEVELOPMENT
-        ghc-options:   -Wall -O0
+        ghc-options:   -Wall -fwarn-tabs -O0
     else
-        ghc-options:   -Wall -O2
+        ghc-options:   -Wall -fwarn-tabs -O2
 
     extensions: TemplateHaskell
                 QuasiQuotes
@@ -824,7 +824,8 @@ stanzas:
 # If you would like to have Keter automatically create a PostgreSQL database
 # and set appropriate environment variables for it to be discovered, uncomment
 # the following line.
-# postgres: true
+# plugins:
+#   postgres: true
 
 {-# START_FILE config/models #-}
 User
diff --git a/yesod-bin/hsfiles/postgres.hsfiles b/yesod-bin/hsfiles/postgres.hsfiles
index fb99d144..5cd7cef6 100644
--- a/yesod-bin/hsfiles/postgres.hsfiles
+++ b/yesod-bin/hsfiles/postgres.hsfiles
@@ -403,9 +403,9 @@ library
 
     if flag(dev) || flag(library-only)
         cpp-options:   -DDEVELOPMENT
-        ghc-options:   -Wall -O0
+        ghc-options:   -Wall -fwarn-tabs -O0
     else
-        ghc-options:   -Wall -O2
+        ghc-options:   -Wall -fwarn-tabs -O2
 
     extensions: TemplateHaskell
                 QuasiQuotes
@@ -774,7 +774,8 @@ stanzas:
 # If you would like to have Keter automatically create a PostgreSQL database
 # and set appropriate environment variables for it to be discovered, uncomment
 # the following line.
-# postgres: true
+# plugins:
+#   postgres: true
 
 {-# START_FILE config/models #-}
 User
diff --git a/yesod-bin/hsfiles/simple.hsfiles b/yesod-bin/hsfiles/simple.hsfiles
index 8c266a4e..b0291285 100644
--- a/yesod-bin/hsfiles/simple.hsfiles
+++ b/yesod-bin/hsfiles/simple.hsfiles
@@ -326,9 +326,9 @@ library
 
     if flag(dev) || flag(library-only)
         cpp-options:   -DDEVELOPMENT
-        ghc-options:   -Wall -O0
+        ghc-options:   -Wall -fwarn-tabs -O0
     else
-        ghc-options:   -Wall -O2
+        ghc-options:   -Wall -fwarn-tabs -O2
 
     extensions: TemplateHaskell
                 QuasiQuotes
@@ -685,7 +685,8 @@ stanzas:
 # If you would like to have Keter automatically create a PostgreSQL database
 # and set appropriate environment variables for it to be discovered, uncomment
 # the following line.
-# postgres: true
+# plugins:
+#   postgres: true
 
 {-# START_FILE config/robots.txt #-}
 User-agent: *
diff --git a/yesod-bin/hsfiles/sqlite.hsfiles b/yesod-bin/hsfiles/sqlite.hsfiles
index 54f627ca..18cc7e0e 100644
--- a/yesod-bin/hsfiles/sqlite.hsfiles
+++ b/yesod-bin/hsfiles/sqlite.hsfiles
@@ -403,9 +403,9 @@ library
 
     if flag(dev) || flag(library-only)
         cpp-options:   -DDEVELOPMENT
-        ghc-options:   -Wall -O0
+        ghc-options:   -Wall -fwarn-tabs -O0
     else
-        ghc-options:   -Wall -O2
+        ghc-options:   -Wall -fwarn-tabs -O2
 
     extensions: TemplateHaskell
                 QuasiQuotes
@@ -774,7 +774,8 @@ stanzas:
 # If you would like to have Keter automatically create a PostgreSQL database
 # and set appropriate environment variables for it to be discovered, uncomment
 # the following line.
-# postgres: true
+# plugins:
+#   postgres: true
 
 {-# START_FILE config/models #-}
 User