diff --git a/dlls/kernel32/powermgnt.c b/dlls/kernel32/powermgnt.c
index 190dc016c31..7efd84d4107 100644
--- a/dlls/kernel32/powermgnt.c
+++ b/dlls/kernel32/powermgnt.c
@@ -52,7 +52,7 @@ BOOL WINAPI GetSystemPowerStatus(LPSYSTEM_POWER_STATUS ps)
         ps->ACLineStatus        = 255;
         ps->BatteryFlag         = 255;
         ps->BatteryLifePercent  = 255;
-        ps->Reserved1           = 0;
+        ps->SystemStatusFlag    = 0;
         ps->BatteryLifeTime     = ~0u;
         ps->BatteryFullLifeTime = ~0u;
         return TRUE;
diff --git a/dlls/kernel32/tests/generated.c b/dlls/kernel32/tests/generated.c
index 36053b84916..ae1f96613ab 100644
--- a/dlls/kernel32/tests/generated.c
+++ b/dlls/kernel32/tests/generated.c
@@ -1755,9 +1755,9 @@ static void test_pack_SYSTEM_POWER_STATUS(void)
     TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, BatteryLifePercent, 1)
     TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, BatteryLifePercent, 1)
     TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, BatteryLifePercent, 2)
-    TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, Reserved1, 1)
-    TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, Reserved1, 1)
-    TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, Reserved1, 3)
+    TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, SystemStatusFlag, 1)
+    TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, SystemStatusFlag, 1)
+    TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, SystemStatusFlag, 3)
     TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, BatteryLifeTime, 4)
     TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, BatteryLifeTime, 4)
     TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, BatteryLifeTime, 4)
@@ -3612,9 +3612,9 @@ static void test_pack_SYSTEM_POWER_STATUS(void)
     TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, BatteryLifePercent, 1)
     TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, BatteryLifePercent, 1)
     TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, BatteryLifePercent, 2)
-    TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, Reserved1, 1)
-    TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, Reserved1, 1)
-    TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, Reserved1, 3)
+    TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, SystemStatusFlag, 1)
+    TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, SystemStatusFlag, 1)
+    TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, SystemStatusFlag, 3)
     TEST_FIELD_SIZE  (SYSTEM_POWER_STATUS, BatteryLifeTime, 4)
     TEST_FIELD_ALIGN (SYSTEM_POWER_STATUS, BatteryLifeTime, 4)
     TEST_FIELD_OFFSET(SYSTEM_POWER_STATUS, BatteryLifeTime, 4)
diff --git a/include/winbase.h b/include/winbase.h
index 3a213df4e4b..33a2f3e45a4 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -961,7 +961,7 @@ typedef struct _SYSTEM_POWER_STATUS
   BYTE    ACLineStatus;
   BYTE    BatteryFlag;
   BYTE    BatteryLifePercent;
-  BYTE    Reserved1;
+  BYTE    SystemStatusFlag;
   DWORD   BatteryLifeTime;
   DWORD   BatteryFullLifeTime;
 } SYSTEM_POWER_STATUS, *LPSYSTEM_POWER_STATUS;