1 files changed, 1 insertions, 1 deletions

diff --git a/hdl/mem_arbiter.sv b/hdl/mem_arbiter.sv
index ba3bd7d..c34faa8 100644
--- a/hdl/mem_arbiter.sv
+++ b/hdl/mem_arbiter.sv
@@ -55,7 +55,7 @@ module mem_arbiter
 
             for (int i = 0; i < `NUM_PDPS+1; ++i) begin
                 automatic int j = selector + i;
-                if (j > `NUM_PDPS) j = j - `NUM_PDPS-1;
+                if (j > `NUM_PDPS) j = j - (`NUM_PDPS+1);
                 if (!ram_valid && hold_valid[j]) begin
                     ram_valid = 1;
                     ram_data = hold_data[j];