diff --git a/lib/entropy/tools.py b/lib/entropy/tools.py
index 43bf0d925..2ab8e98df 100644
--- a/lib/entropy/tools.py
+++ b/lib/entropy/tools.py
@@ -2612,7 +2612,7 @@ def elf_class_strtoint(elf_class_str):
     """
     if elf_class_str in ("X86_64", "ELFCLASS64", "PARISC", "SPARCV9", "AARCH64"):
         return 2
-    elif elf_class_str in ("ARM", "386", "ELFCLASS32", "SPARC"):
+    elif elf_class_str in ("ARM", "386", "ELFCLASS32", "SPARC", "MIPS"):
         return 1
     else:
         raise ValueError('unsupported %s' % (elf_class_str,))