diff --git a/sysa/mes-0.24.2/mes-0.24.2.kaem b/sysa/mes-0.24.2/mes-0.24.2.kaem
index 3d66ce0..b04055e 100755
--- a/sysa/mes-0.24.2/mes-0.24.2.kaem
+++ b/sysa/mes-0.24.2/mes-0.24.2.kaem
@@ -28,8 +28,8 @@ cd ..
 cd build
 untar --file ../src/${NYACC_PKG}.tar
 untar --non-strict --file ../src/${MES_PKG}.tar # ignore symlinks
-/x86/bin/simple-patch /sysa/mes-0.24.2/build/mes-0.24.2/kaem.run \
-    /sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.before /sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.after
+mes_run=/sysa/mes-0.24.2/build/mes-0.24.2/kaem.run
+replace --file ${mes_run} --output ${mes_run} --match-on 0x1000000 --replace-with 0x8048000
 
 rm ../src/${NYACC_PKG}.tar ../src/${MES_PKG}.tar
 
diff --git a/sysa/mes-0.24.2/simple-patches/mes-0.24.1.kaem-base-address.after b/sysa/mes-0.24.2/simple-patches/mes-0.24.1.kaem-base-address.after
deleted file mode 100644
index 2e10076..0000000
--- a/sysa/mes-0.24.2/simple-patches/mes-0.24.1.kaem-base-address.after
+++ /dev/null
@@ -1 +0,0 @@
-${mescc_scm} -- --base-address 0x08048000 -L
\ No newline at end of file
diff --git a/sysa/mes-0.24.2/simple-patches/mes-0.24.1.kaem-base-address.before b/sysa/mes-0.24.2/simple-patches/mes-0.24.1.kaem-base-address.before
deleted file mode 100644
index 91e6917..0000000
--- a/sysa/mes-0.24.2/simple-patches/mes-0.24.1.kaem-base-address.before
+++ /dev/null
@@ -1 +0,0 @@
-${mescc_scm} -- -L
\ No newline at end of file
diff --git a/sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.after b/sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.after
deleted file mode 100644
index 6e0c946..0000000
--- a/sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.after
+++ /dev/null
@@ -1 +0,0 @@
---base-address 0x8048000
\ No newline at end of file
diff --git a/sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.before b/sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.before
deleted file mode 100644
index ed888c8..0000000
--- a/sysa/mes-0.24.2/simple-patches/mes-kaem.run-base-address.before
+++ /dev/null
@@ -1 +0,0 @@
---base-address 0x1000000
\ No newline at end of file