diff --git a/sdk/install b/sdk/install
index 166b718..d9a6283 100755
--- a/sdk/install
+++ b/sdk/install
@@ -96,6 +96,13 @@ case $1 in
 				echo creating redirecting header $3/m68k-amigaos/include/${a[1]}
 				echo "#include \"${a[2]}\"" >$3/m68k-amigaos/include/${a[1]}
 			;;
+			sed)
+				echo applying: sed -i.bak -E "${a[@]:2}" $3/${a[1]}
+				x=${a[@]:2}
+				x=${x##\"}
+				x=${x%%\"}
+				LC_CTYPE=C sed -i.bak -E "$x" $3/${a[1]}
+			;;
 			symlink)
 				echo creating symlink from $3/m68k-amigaos/${a[2]} to $3/m68k-amigaos/${a[1]}
 				rm -rf $3/m68k-amigaos/${a[2]}
diff --git a/sdk/mui.sdk b/sdk/mui.sdk
index 65de088..bbd9a8c 100644
--- a/sdk/mui.sdk
+++ b/sdk/mui.sdk
@@ -113,4 +113,5 @@ sfdc : muimaster_lib.sfd muimaster.h muimaster_lib.h
 stubs : muimaster_lib.sfd
 lib : muimaster_lib.sfd
 patch : SDK/MUI/C/include/libraries/mui.h
-
+sed : m68k-amigaos/include/proto/muimaster.h "s/(#   include <inline\/muimaster_lib.h>)/#define NO_INLINE_STDARG\n#define NO_INLINE_VARARGS\n\1/g"
+sed : m68k-amigaos/include/proto/muimaster_lib.h "s/(#   include <inline\/muimaster_lib.h>)/#define NO_INLINE_STDARG\n#define NO_INLINE_VARARGS\n\1/g"