diff --git a/base/applications/cmdutils/reg/reg.h b/base/applications/cmdutils/reg/reg.h
index 3fc9e392d45..b12d936d672 100644
--- a/base/applications/cmdutils/reg/reg.h
+++ b/base/applications/cmdutils/reg/reg.h
@@ -45,7 +45,7 @@ BOOL is_char(const WCHAR s, const WCHAR c);
 BOOL is_switch(const WCHAR *s, const WCHAR c);
 
 /* add.c */
-int reg_add(int arc, WCHAR *argvW[]);
+int reg_add(int argc, WCHAR *argvW[]);
 
 /* delete.c */
 int reg_delete(int argc, WCHAR *argvW[]);
diff --git a/sdk/tools/winesync/reg.cfg b/sdk/tools/winesync/reg.cfg
index 172377fde56..4379cb99a16 100644
--- a/sdk/tools/winesync/reg.cfg
+++ b/sdk/tools/winesync/reg.cfg
@@ -4,4 +4,4 @@ directories:
 files:
   programs/reg/resource.h: base/applications/cmdutils/reg/resource.h
 tags:
-  wine: ca57a86074e6109fcc2254e3d58ff225f4335236
+  wine: 537cd26f7cf799bf51875d1bc4970ec79a1184a3