diff --git a/src/peakrdl_regblock/hwif/__init__.py b/src/peakrdl_regblock/hwif/__init__.py
index 4ff95f0..1462264 100644
--- a/src/peakrdl_regblock/hwif/__init__.py
+++ b/src/peakrdl_regblock/hwif/__init__.py
@@ -50,7 +50,7 @@ class Hwif:
 
 
     def get_extra_package_params(self) -> str:
-        lines = []
+        lines = [""]
 
         for param in self.top_node.inst.parameters:
             value = param.get_value()
@@ -70,7 +70,7 @@ class Hwif:
         """
         If this hwif requires a package, generate the string
         """
-        lines = []
+        lines = [""]
 
         gen_in = self._gen_in_cls(self)
         structs_in = gen_in.get_struct(
diff --git a/src/peakrdl_regblock/package_tmpl.sv b/src/peakrdl_regblock/package_tmpl.sv
index 5e71fc6..b665495 100644
--- a/src/peakrdl_regblock/package_tmpl.sv
+++ b/src/peakrdl_regblock/package_tmpl.sv
@@ -7,8 +7,8 @@ package {{ds.package_name}};
     localparam {{ds.module_name.upper()}}_MIN_ADDR_WIDTH = {{ds.addr_width}};
     localparam {{ds.module_name.upper()}}_SIZE = {{SVInt(ds.top_node.size)}};
 
-    {{hwif.get_extra_package_params()|indent}}
+    {{-hwif.get_extra_package_params()|indent}}
 
-    {{hwif.get_package_contents()|indent}}
+    {{-hwif.get_package_contents()|indent}}
 endpackage
 {# (eof newline anchor) #}
diff --git a/tests/test_pkg_params/regblock.rdl b/tests/test_pkg_params/regblock.rdl
index 41660de..09b7418 100644
--- a/tests/test_pkg_params/regblock.rdl
+++ b/tests/test_pkg_params/regblock.rdl
@@ -5,7 +5,7 @@ addrmap top #(
 ) {
     reg reg_t {
         regwidth = REGWIDTH;
-        field {sw=rw; hw=na;} f[REGWIDTH] = 1;
+        field {sw=rw; hw=r;} f[REGWIDTH] = 1;
     };
     reg_t regs[N_REGS];
 };