--- a/src/libraries/physfs/physfs_platform_unix.c
+++ b/src/libraries/physfs/physfs_platform_unix.c
@@ -101,7 +101,7 @@
     FILE *mounts = NULL;
     struct mntent *ent = NULL;
 
-    mounts = setmntent("/etc/mtab", "r");
+    mounts = setmntent("@TERMUX_PREFIX@/etc/mtab", "r");
     BAIL_IF(mounts == NULL, PHYSFS_ERR_IO, /*return void*/);
 
     while ( (ent = getmntent(mounts)) != NULL )