--- a/libpolyml/basicio.cpp
+++ b/libpolyml/basicio.cpp
@@ -993,7 +993,7 @@
             if (buff == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY);
             strcpy(buff, P_tmpdir);
 #else
-            const char *tmpdir = "/tmp";
+            const char *tmpdir = "@TERMUX_PREFIX@/tmp";
             TempString buff((char *)malloc(strlen(tmpdir) + strlen(template_subdir) + 1));
             if (buff == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY);
             strcpy(buff, tmpdir);