diff --git a/install-termux.sh b/install-termux.sh
index e30ad16..3b5ff89 100644
--- a/install-termux.sh
+++ b/install-termux.sh
@@ -5,23 +5,28 @@
 
 set -e
 
+VERSION="2.1.0"
+REL_LINK="https://github.com/YZBruh/pbt/releases/download/${VERSION}/pmt-${ARCH}-linux-android.xz"
+CUR_DIR="$(pwd)"
+TMP_DIR="${CUR_DIR}/tempinstall"
+TERMUX_BIN_PREFIX="/data/data/com.termux/files/usr/bin"
 UNAME="$(uname -m)"
 
+abort()
+{
+    rm -rf ${TMP_DIR}
+    exit 1;
+}
+
 if [[ "${UNAME}" == "aarch64" ]] || [[ "${UNAME}" == "armv8a" ]]; then
     ARCH="aarch64"
 elif [[ "${UNAME}" == "aarch32" ]] || [[ "${UNAME}" == "armv7a" ]]; then
     ARCH="armv7a"
 else
     echo "  - Unsupported arch: ${UNAME}!"
-    exit 1
+    abort
 fi
 
-VERSION="2.1.0"
-REL_LINK="https://github.com/YZBruh/pbt/releases/download/${VERSION}/pmt-${ARCH}-linux-android.xz"
-CUR_DIR="$(pwd)"
-TMP_DIR="${CUR_DIR}/tempinstall"
-TERMUX_BIN_PREFIX="/data/data/com.termux/files/usr/bin"
-
 echo " ------------ pmt installer ------------"
 
 if [ -f "${TERMUX_BIN_PREFIX}/pmt" ]; then
@@ -34,7 +39,7 @@ if [ -f "${TERMUX_BIN_PREFIX}/pmt" ]; then
         exit
     else
         echo "${0}: unexpected: ${state}"
-        exit 1
+        abort
     fi
 fi