diff --git a/panda_regressions/hls/bambu_interface_test/axi_small_write.c b/panda_regressions/hls/bambu_interface_test/axi_small_write.c
index 8ef203654..d99de0e88 100644
--- a/panda_regressions/hls/bambu_interface_test/axi_small_write.c
+++ b/panda_regressions/hls/bambu_interface_test/axi_small_write.c
@@ -10,14 +10,14 @@
 #pragma HLS interface port = b mode = m_axi offset = direct bundle = gmem1
 
 #if defined(BIG_BUS)
-#pragma HLS cache bundle = gmem0 line_count = 16 line_size = 16 bus_size = 64 ways = 1 num_write_outstanding = 2 rep_policy = \
+#pragma HLS cache bundle = gmem0 line_count = 16 line_size = 16 bus_size = 128 ways = 1 num_write_outstanding = 2 rep_policy = \
     lru write_policy = wt
-#pragma HLS cache bundle = gmem1 line_count = 16 line_size = 16 bus_size = 64 ways = 1 num_write_outstanding = 2 rep_policy = \
+#pragma HLS cache bundle = gmem1 line_count = 16 line_size = 16 bus_size = 128 ways = 1 num_write_outstanding = 2 rep_policy = \
     lru write_policy = wt
 #else
-#pragma HLS cache bundle = gmem0 line_count = 16 line_size = 16 bus_size = 32 ways = 1 num_write_outstanding = 2 rep_policy = \
+#pragma HLS cache bundle = gmem0 line_count = 16 line_size = 16 bus_size = 128 ways = 1 num_write_outstanding = 2 rep_policy = \
     lru write_policy = wt
-#pragma HLS cache bundle = gmem1 line_count = 16 line_size = 16 bus_size = 32 ways = 1 num_write_outstanding = 2 rep_policy = \
+#pragma HLS cache bundle = gmem1 line_count = 16 line_size = 16 bus_size = 128 ways = 1 num_write_outstanding = 2 rep_policy = \
     lru write_policy = wt
 #endif
 int __attribute__((noinline)) vector_copy_plus(int* a, int* b)