diff --git a/src/p_djgpp2.cpp b/src/p_djgpp2.cpp
index 9de14d27..5b646bfa 100644
--- a/src/p_djgpp2.cpp
+++ b/src/p_djgpp2.cpp
@@ -68,7 +68,7 @@ const int *PackDjgpp2::getCompressionMethods(int method, int level) const
 const int *PackDjgpp2::getFilters() const
 {
     static const int filters[] = {
-        0x26, 0x24, 0x11, 0x14, 0x13, 0x16, 0x25, 0x15, 0x12,
+        0x26, 0x24, 0x16, 0x13, 0x14, 0x11, FT_ULTRA_BRUTE, 0x25, 0x15, 0x12,
     FT_END };
     return filters;
 }
diff --git a/src/p_tmt.cpp b/src/p_tmt.cpp
index 22131475..01f5a956 100644
--- a/src/p_tmt.cpp
+++ b/src/p_tmt.cpp
@@ -59,7 +59,7 @@ const int *PackTmt::getCompressionMethods(int method, int level) const
 const int *PackTmt::getFilters() const
 {
     static const int filters[] = {
-        0x26, 0x24, 0x11, 0x14, 0x13, 0x16, 0x25, 0x12, 0x15,
+        0x26, 0x24, 0x16, 0x13, 0x14, 0x11, FT_ULTRA_BRUTE, 0x25, 0x15, 0x12,
     FT_END };
     return filters;
 }
diff --git a/src/p_vmlinz.cpp b/src/p_vmlinz.cpp
index f4e92354..18408187 100644
--- a/src/p_vmlinz.cpp
+++ b/src/p_vmlinz.cpp
@@ -68,7 +68,7 @@ const int *PackVmlinuzI386::getFilters() const
 {
     static const int filters[] = {
         0x49,
-        0x26, 0x24, 0x11, 0x14, 0x13, 0x16, 0x25, 0x15, 0x12,
+        0x26, 0x24, 0x16, 0x13, 0x14, 0x11, FT_ULTRA_BRUTE, 0x25, 0x15, 0x12,
     FT_END };
     return filters;
 }
diff --git a/src/p_wcle.cpp b/src/p_wcle.cpp
index 465de3d1..f0b7dc79 100644
--- a/src/p_wcle.cpp
+++ b/src/p_wcle.cpp
@@ -76,7 +76,7 @@ const int *PackWcle::getCompressionMethods(int method, int level) const
 const int *PackWcle::getFilters() const
 {
     static const int filters[] = {
-        0x26, 0x24, 0x14, 0x11, 0x16, 0x13, 0x25, 0x12, 0x15,
+        0x26, 0x24, 0x16, 0x13, 0x14, 0x11, FT_ULTRA_BRUTE, 0x25, 0x15, 0x12,
     FT_END };
     return filters;
 }