diff --git a/fips202/fips202x4.c b/fips202/fips202x4.c
index 0d5c702e0..6e0ec08cf 100644
--- a/fips202/fips202x4.c
+++ b/fips202/fips202x4.c
@@ -101,7 +101,7 @@ uint64_t *keccakx_get_lane_state(keccakx4_state *state, size_t index)
         return NULL;
     }
 
-    return state->ctx + index *KECCAK_CTX;
+    return state->ctx + index * KECCAK_CTX;
 }
 
 int shake128x4_absorb(keccakx4_state *state,