--- a/gtk3-nocsd.in
+++ b/gtk3-nocsd.in
@@ -20,17 +20,14 @@
 
 # Determine if this script are installed in the system path
 GTK3_NOCSD_BINARY="$(readlink -fe "$(which "$0")")"
-case "${GTK3_NOCSD_BINARY%/*}" in
-    /sbin|/bin|/usr/bin|/usr/sbin|/usr/local/bin|/usr/local/sbin)  IN_SYSTEM_PATH=1  ;;
-    *)                                                             IN_SYSTEM_PATH=0  ;;
-esac
+IN_SYSTEM_PATH=1
 
 # Determine if the library is in the system path. If that's the case,
 # just use the plain library name, because that way loading the library
 # on all architectures it's installed is supported (because the linker
 # will automatically pick out the right one).
 if [ $IN_SYSTEM_PATH -eq 1 ] ; then
-    if LC_ALL=C LD_PRELOAD="${GTK3_NOCSD_NAME}" /bin/true 2>&1  | grep LD_PRELOAD | grep -qF "${GTK3_NOCSD_NAME}" ; then
+    if LC_ALL=C LD_PRELOAD="${GTK3_NOCSD_NAME}" @TERMUX_PREFIX@/bin/true 2>&1  | grep LD_PRELOAD | grep -qF "${GTK3_NOCSD_NAME}" ; then
         IN_SYSTEM_PATH=0
     else
         GTK3_NOCSD="${GTK3_NOCSD_NAME}"
@@ -72,13 +69,13 @@
 
 # Find the real program (the first one that's not symlinked to get3-nocsd)
 APPNAME="$(basename "$0")"
-for APPPATH in $(which -a "$APPNAME") /bin/false; do
+for APPPATH in $(which -a "$APPNAME") @TERMUX_PREFIX@/bin/false; do
     APPPATH_LINK="$(readlink -fe "$APPPATH")"
     [ x"${APPPATH_LINK##*/}"x = x"gtk3-nocsd"x ] || break
 done
 
 # Provide error message at all
-if [ x"$APPNAME"x != x"false"x ] && [ x"${APPPATH}"x = x"/bin/false"x ] ; then
+if [ x"$APPNAME"x != x"false"x ] && [ x"${APPPATH}"x = x"@TERMUX_PREFIX@/bin/false"x ] ; then
     APPPATH=/.gtk3-nocsd./"$APPNAME"
 fi