diff --git a/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l1_cache.py b/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l1_cache.py
index 9f47e411f8..b4854816fb 100644
--- a/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l1_cache.py
+++ b/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l1_cache.py
@@ -68,14 +68,14 @@ class L1Cache(L0Cache_Controller):
         self.Icache = RubyCache(
             size=l1i_size,
             assoc=l1i_assoc,
-            start_index_bit=self.getBlockSizeBits(cache_line_size.value),
+            start_index_bit=self.getBlockSizeBits(cache_line_size),
             is_icache=True,
             replacement_policy=LRURP(),
         )
         self.Dcache = RubyCache(
             size=l1d_size,
             assoc=l1d_assoc,
-            start_index_bit=self.getBlockSizeBits(cache_line_size.value),
+            start_index_bit=self.getBlockSizeBits(cache_line_size),
             is_icache=False,
             replacement_policy=LRURP(),
         )
diff --git a/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l2_cache.py b/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l2_cache.py
index d8c965924e..d54e1ab8dc 100644
--- a/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l2_cache.py
+++ b/src/python/gem5/components/cachehierarchies/ruby/caches/mesi_three_level/l2_cache.py
@@ -67,7 +67,7 @@ class L2Cache(L1Cache_Controller):
         self.cache = RubyCache(
             size=l2_size,
             assoc=l2_assoc,
-            start_index_bit=self.getBlockSizeBits(cache_line_size.value),
+            start_index_bit=self.getBlockSizeBits(cache_line_size),
             is_icache=False,
         )
         # l2_select_num_bits is ruby backend terminology.