--- a/libinterp/corefcn/sysdep.cc
+++ b/libinterp/corefcn/sysdep.cc
@@ -796,7 +796,7 @@
 
 #else
 
-  return "/tmp";
+  return "@TERMUX_PREFIX@/tmp";
 
 #endif
 }
--- a/liboctave/system/oct-env.cc
+++ b/liboctave/system/oct-env.cc
@@ -237,7 +237,7 @@
     tempd = P_tmpdir;
 #else
   if (tempd.empty ())
-    tempd = "/tmp";
+    tempd = "@TERMUX_PREFIX@/tmp";
 #endif
 
 #endif
--- a/src/mkoctfile.in.cc
+++ b/src/mkoctfile.in.cc
@@ -639,7 +639,7 @@
     tempd = P_tmpdir;
 #else
   if (tempd.empty ())
-    tempd = "/tmp";
+    tempd = "@TERMUX_PREFIX@/tmp";
 #endif
 
 #endif
--- a/run-octave.in
+++ b/run-octave.in
@@ -127,7 +127,7 @@
     ## Is there a better way to do this so that we don't fill /tmp
     ## with junk files?  Using /dev/null won't work because asan
     ## appends the process ID to the file name.
-    ASAN_OPTIONS="leak_check_at_exit=0:log_path=/tmp/oct-asan-log:verbosity=0"
+    ASAN_OPTIONS="leak_check_at_exit=0:log_path=@TERMUX_PREFIX@/tmp/oct-asan-log:verbosity=0"
   else
     ASAN_OPTIONS="$ADDRESS_SANITIZER_OPTIONS"
   fi