diff --git a/hw/i386/smbios.c b/hw/i386/smbios.c
index 17938215f6c5..b3bedde8b96b 100644
--- a/hw/i386/smbios.c
+++ b/hw/i386/smbios.c
@@ -683,10 +683,10 @@ static void smbios_build_type_17_table(unsigned instance, ram_addr_t size)
     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
     t->attributes = 0; /* Unknown */
-    t->configured_clock_speed = cpu_to_le32(0); /* Unknown */
-    t->minimum_voltage = cpu_to_le32(0); /* Unknown */
-    t->maximum_voltage = cpu_to_le32(0); /* Unknown */
-    t->configured_voltage = cpu_to_le32(0); /* Unknown */
+    t->configured_clock_speed = cpu_to_le16(0); /* Unknown */
+    t->minimum_voltage = cpu_to_le16(0); /* Unknown */
+    t->maximum_voltage = cpu_to_le16(0); /* Unknown */
+    t->configured_voltage = cpu_to_le16(0); /* Unknown */
 
     SMBIOS_BUILD_TABLE_POST;
 }
diff --git a/include/hw/i386/smbios.h b/include/hw/i386/smbios.h
index 5583f60405f1..a3f4d88bf011 100644
--- a/include/hw/i386/smbios.h
+++ b/include/hw/i386/smbios.h
@@ -182,10 +182,10 @@ struct smbios_type_17 {
     uint8_t part_number_str;
     uint8_t attributes;
     uint32_t extended_size;
-    uint32_t configured_clock_speed;
-    uint32_t minimum_voltage;
-    uint32_t maximum_voltage;
-    uint32_t configured_voltage;
+    uint16_t configured_clock_speed;
+    uint16_t minimum_voltage;
+    uint16_t maximum_voltage;
+    uint16_t configured_voltage;
 } QEMU_PACKED;
 
 /* SMBIOS type 19 - Memory Array Mapped Address (v2.7) */