diff --git a/src/mem/protocol/RubySlicc_Util.sm b/src/mem/protocol/RubySlicc_Util.sm
index d69be1f5f3..92f3f14e8c 100644
--- a/src/mem/protocol/RubySlicc_Util.sm
+++ b/src/mem/protocol/RubySlicc_Util.sm
@@ -55,4 +55,4 @@ bool distributedPersistentEnabled();
 Address setOffset(Address addr, int offset);
 Address makeLineAddress(Address addr);
 int addressOffset(Address addr);
-
+int mod(int val, int mod);
diff --git a/src/mem/ruby/slicc_interface/RubySlicc_Util.hh b/src/mem/ruby/slicc_interface/RubySlicc_Util.hh
index 7fff1525bb..81de8e468f 100644
--- a/src/mem/ruby/slicc_interface/RubySlicc_Util.hh
+++ b/src/mem/ruby/slicc_interface/RubySlicc_Util.hh
@@ -182,4 +182,10 @@ addressOffset(Address addr)
     return addr.getOffset();
 }
 
+inline int
+mod(int val, int mod)
+{
+    return val % mod;
+}
+
 #endif // __MEM_RUBY_SLICC_INTERFACE_RUBYSLICCUTIL_HH__