diff --git a/src/norm/private/postgres/dbtypes.nim b/src/norm/private/postgres/dbtypes.nim
index b8012b24..e9a5cdeb 100644
--- a/src/norm/private/postgres/dbtypes.nim
+++ b/src/norm/private/postgres/dbtypes.nim
@@ -52,9 +52,9 @@ func dbValue*[T: Model](val: Option[T]): DbValue =
   else:
     dbValue(nil)
 
-func dbValue*[_](val: StringOfCap[_]): DbValue = dbValue(string(val))
+func dbValue*[T](val: StringOfCap[T]): DbValue = dbValue(string(val))
 
-func dbValue*[_](val: PaddedStringOfCap[_]): DbValue = dbValue(string(val))
+func dbValue*[T](val: PaddedStringOfCap[T]): DbValue = dbValue(string(val))
 
 
 # Converter funcs from ``DbValue`` instances to Nim types:
@@ -67,9 +67,9 @@ func to*(dbVal; T: typedesc[SomeFloat]): T = dbVal.f.T
 
 func to*(dbVal; T: typedesc[string]): T = dbVal.s
 
-func to*[_](dbVal; T: typedesc[StringOfCap[_]]): T = dbVal.o.value.T
+func to*[U](dbVal; T: typedesc[StringOfCap[U]]): T = dbVal.o.value.T
 
-func to*[_](dbVal; T: typedesc[PaddedStringOfCap[_]]): T = dbVal.o.value.T
+func to*[U](dbVal; T: typedesc[PaddedStringOfCap[U]]): T = dbVal.o.value.T
 
 func to*(dbVal; T: typedesc[bool]): T = dbVal.b
 
diff --git a/src/norm/private/sqlite/dbtypes.nim b/src/norm/private/sqlite/dbtypes.nim
index 38b56c9b..a33a0cc6 100644
--- a/src/norm/private/sqlite/dbtypes.nim
+++ b/src/norm/private/sqlite/dbtypes.nim
@@ -46,9 +46,9 @@ func dbValue*(val: DateTime): DbValue = dbValue(val.toTime().toUnixFloat())
 
 func dbValue*[T: Model](val: T): DbValue = dbValue(val.id)
 
-func dbValue*[_](val: StringOfCap[_]): DbValue = dbValue(string(val))
+func dbValue*[T](val: StringOfCap[T]): DbValue = dbValue(string(val))
 
-func dbValue*[_](val: PaddedStringOfCap[_]): DbValue = dbValue(string(val))
+func dbValue*[T](val: PaddedStringOfCap[T]): DbValue = dbValue(string(val))
 
 func dbValue*(val: Option[bool]): DbValue =
   if val.isSome:
@@ -90,9 +90,9 @@ func to*(dbVal; T: typedesc[DbBlob]): T = dbVal.b
 
 proc to*(dbVal; T: typedesc[DateTime]): T = utc dbVal.f.fromUnixFloat()
 
-func to*[_](dbVal; T: typedesc[StringOfCap[_]]): T = dbVal.s.T
+func to*[U](dbVal; T: typedesc[StringOfCap[U]]): T = dbVal.s.T
 
-func to*[_](dbVal; T: typedesc[PaddedStringOfCap[_]]): T = dbVal.s.T
+func to*[U](dbVal; T: typedesc[PaddedStringOfCap[U]]): T = dbVal.s.T
 
 func to*(dbVal; T: typedesc[Model]): T =
   ## This is never called and exists only to please the compiler.
diff --git a/src/norm/types.nim b/src/norm/types.nim
index bcd97a89..64fb9fb1 100644
--- a/src/norm/types.nim
+++ b/src/norm/types.nim
@@ -14,15 +14,15 @@ func newStringOfCap*[C: static[int]](val = ""): StringOfCap[C] =
 func newPaddedStringOfCap*[C: static[int]](val = ""): PaddedStringOfCap[C] =
   PaddedStringOfCap[C](val.alignLeft(C))
 
-func `==`*[_](x, y: StringOfCap[_]): bool =
+func `==`*[T](x, y: StringOfCap[T]): bool =
   string(x) == string(y)
 
-func `==`*[_](x, y: PaddedStringOfCap[_]): bool =
+func `==`*[T](x, y: PaddedStringOfCap[T]): bool =
   string(x) == string(y)
 
-func `$`*[_](s: StringOfCap[_]): string =
+func `$`*[T](s: StringOfCap[T]): string =
   string(s)
 
-func `$`*[_](s: PaddedStringOfCap[_]): string =
+func `$`*[T](s: PaddedStringOfCap[T]): string =
   string(s)