diff --git a/tools/ncc/ncc.style b/tools/ncc/ncc.style
index 3c228569..593579d5 100644
--- a/tools/ncc/ncc.style
+++ b/tools/ncc/ncc.style
@@ -3,7 +3,7 @@ CppMethod: '^operator|^FUN_[a-f0-9]{8}$|^VTable0x[a-f0-9]{1,3}$|^(?!VTable).*[A-
 # EnumConstantName
 EnumName: '^\(unnamed|^[A-Z][a-zA-Z0-9]+$'
 FunctionName: '^operator|^FUN_[a-f0-9]{8}$|^VTable0x[a-f0-9]{1,3}$|^(?!VTable).*[A-Z][a-zA-Z0-9]+$'
-ParameterName: '^p_[a-z0-9][a-zA-Z0-9]*$|^$'
+ParameterName: '^p_(unk0x[a-f0-9]{1,3}$|(?!unk).*[a-z][a-zA-Z0-9]*)$|^$'
 StructName: '^\(anon|^\(unnamed|^[A-Z][a-zA-Z0-9]+$'
 TypedefName: '^[A-Z][a-zA-Z0-9]+$'
 UnionName: '^\(anon|^[A-Z][a-zA-Z0-9]+$'
@@ -18,4 +18,4 @@ VariableName:
         Integer: ''
         Bool: ''
         Pointer: ''
-    Pattern: '^(unk0x[a-f0-9]{1,3}$|(?!unk).*[a-z0-9][a-zA-Z0-9]*)$'
+    Pattern: '^(unk0x[a-f0-9]{1,3}$|(?!unk).*[a-z][a-zA-Z0-9]*)$'