1 files changed, 2 insertions, 2 deletions
diff --git a/vcl/headless/svpgdi.cxx b/vcl/headless/svpgdi.cxx
index 5baa761c88b8..b99ea09ef427 100644
--- a/vcl/headless/svpgdi.cxx
+++ b/vcl/headless/svpgdi.cxx
@@ -103,7 +103,7 @@ namespace
     class SourceHelper
     {
     public:
-        SourceHelper(const SalBitmap& rSourceBitmap)
+        explicit SourceHelper(const SalBitmap& rSourceBitmap)
         {
             const SvpSalBitmap& rSrcBmp = static_cast<const SvpSalBitmap&>(rSourceBitmap);
 
@@ -142,7 +142,7 @@ namespace
     class MaskHelper
     {
     public:
-        MaskHelper(const SalBitmap& rAlphaBitmap)
+        explicit MaskHelper(const SalBitmap& rAlphaBitmap)
         {
             const SvpSalBitmap& rMask = static_cast<const SvpSalBitmap&>(rAlphaBitmap);
             const BitmapBuffer* pMaskBuf = rMask.GetBuffer();