diff --git a/dlls/advapi32/advapi.c b/dlls/advapi32/advapi.c
index 884b5d1cd2a..01ee4de4fe1 100644
--- a/dlls/advapi32/advapi.c
+++ b/dlls/advapi32/advapi.c
@@ -136,7 +136,7 @@ BOOL WINAPI GetCurrentHwProfileA(LPHW_PROFILE_INFOA pInfo)
 	pInfo->dwDockInfo = DOCKINFO_DOCKED;
 	strcpy(pInfo->szHwProfileGuid,"{12340001-1234-1234-1234-123456789012}");
 	strcpy(pInfo->szHwProfileName,"Wine Profile");
-	return 1;
+	return TRUE;
 }
 
 /******************************************************************************
diff --git a/dlls/advapi32/security.c b/dlls/advapi32/security.c
index ac0a9413de8..3dc40dc1ca4 100644
--- a/dlls/advapi32/security.c
+++ b/dlls/advapi32/security.c
@@ -2399,7 +2399,7 @@ BOOL WINAPI
 NotifyBootConfigStatus( BOOL x1 )
 {
 	FIXME("(0x%08d):stub\n",x1);
-	return 1;
+	return TRUE;
 }
 
 /******************************************************************************
diff --git a/dlls/advapi32/service.c b/dlls/advapi32/service.c
index 5f3f15fef31..00470314264 100644
--- a/dlls/advapi32/service.c
+++ b/dlls/advapi32/service.c
@@ -1858,7 +1858,7 @@ BOOL WINAPI GetServiceKeyNameW( SC_HANDLE hSCManager, LPCWSTR lpDisplayName,
     if (!hSCManager)
     {
         SetLastError( ERROR_INVALID_HANDLE );
-        return 0;
+        return FALSE;
     }
 
     /* provide a buffer if the caller didn't */
@@ -1982,7 +1982,7 @@ BOOL WINAPI GetServiceDisplayNameW( SC_HANDLE hSCManager, LPCWSTR lpServiceName,
     if (!hSCManager)
     {
         SetLastError( ERROR_INVALID_HANDLE );
-        return 0;
+        return FALSE;
     }
 
     /* provide a buffer if the caller didn't */