diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 426144c659..56b4b274a1 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -237,7 +237,6 @@ static const char *sd_response_name(sd_rsp_type_t rsp)
 static const char *sd_cmd_name(SDState *sd, uint8_t cmd)
 {
     static const char *cmd_abbrev[SDMMC_CMD_MAX] = {
-                                            [15]    = "GO_INACTIVE_STATE",
         [16]    = "SET_BLOCKLEN",           [17]    = "READ_SINGLE_BLOCK",
         [18]    = "READ_MULTIPLE_BLOCK",
                                             [21]    = "DPS_spec",
@@ -1394,6 +1393,30 @@ static sd_rsp_type_t sd_cmd_SEND_STATUS(SDState *sd, SDRequest req)
     return sd_req_rca_same(sd, req) ? sd_r1 : sd_r0;
 }
 
+/* CMD15 */
+static sd_rsp_type_t sd_cmd_GO_INACTIVE_STATE(SDState *sd, SDRequest req)
+{
+    if (sd->mode != sd_data_transfer_mode) {
+        return sd_invalid_mode_for_cmd(sd, req);
+    }
+    switch (sd->state) {
+    case sd_standby_state:
+    case sd_transfer_state:
+    case sd_sendingdata_state:
+    case sd_receivingdata_state:
+    case sd_programming_state:
+    case sd_disconnect_state:
+        break;
+    default:
+        return sd_invalid_state_for_cmd(sd, req);
+    }
+    if (sd_req_rca_same(sd, req)) {
+        sd->state = sd_inactive_state;
+    }
+
+    return sd_r0;
+}
+
 /* CMD19 */
 static sd_rsp_type_t sd_cmd_SEND_TUNING_BLOCK(SDState *sd, SDRequest req)
 {
@@ -1459,17 +1482,6 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
     }
 
     switch (req.cmd) {
-    /* Basic commands (Class 0 and Class 1) */
-    case 15:  /* CMD15:  GO_INACTIVE_STATE */
-        if (sd->mode != sd_data_transfer_mode) {
-            return sd_invalid_mode_for_cmd(sd, req);
-        }
-        rca = sd_req_get_rca(sd, req);
-        if (sd->rca == rca) {
-            sd->state = sd_inactive_state;
-        }
-        return sd_r0;
-
     /* Block read commands (Class 2) */
     case 16:  /* CMD16:  SET_BLOCKLEN */
         switch (sd->state) {
@@ -2326,6 +2338,7 @@ static const SDProto sd_proto_sd = {
         [11] = {0,  sd_ac,   "VOLTAGE_SWITCH", sd_cmd_optional},
         [12] = {0,  sd_ac,   "STOP_TRANSMISSION", sd_cmd_STOP_TRANSMISSION},
         [13] = {0,  sd_ac,   "SEND_STATUS", sd_cmd_SEND_STATUS},
+        [15] = {0,  sd_ac,   "GO_INACTIVE_STATE", sd_cmd_GO_INACTIVE_STATE},
         [19] = {2,  sd_adtc, "SEND_TUNING_BLOCK", sd_cmd_SEND_TUNING_BLOCK},
         [20] = {2,  sd_ac,   "SPEED_CLASS_CONTROL", sd_cmd_optional},
         [23] = {2,  sd_ac,   "SET_BLOCK_COUNT", sd_cmd_SET_BLOCK_COUNT},