diff --git a/spectre_v1.c b/spectre_v1.c
index 875cd47..481f82f 100644
--- a/spectre_v1.c
+++ b/spectre_v1.c
@@ -39,7 +39,7 @@ victim_function(size_t x)
 			_mm_lfence();
 		#endif
 		#ifdef MASKING_MITIGATION
-			x &= array_index_mask_nospec(x, array1_size);
+			x &= octopus_array_index_mask_nospec(x, array1_size);
 		#endif
 
 		temp &= channel[array1[x] * GAP];