diff --git a/reactos/dll/win32/kernel32/misc/computername.c b/reactos/dll/win32/kernel32/misc/computername.c
index 94b69d6bd22..530ef338ec9 100644
--- a/reactos/dll/win32/kernel32/misc/computername.c
+++ b/reactos/dll/win32/kernel32/misc/computername.c
@@ -310,7 +310,6 @@ IsValidComputerName (
 	    *p == L')' ||
 	    *p == L'(' ||
 	    *p == L'.' ||
-	    *p == L'-' ||
 	    *p == L'_' ||
 	    *p == L'{' ||
 	    *p == L'}' ||