diff --git a/src/lib/sw_engine/tvgSwImage.cpp b/src/lib/sw_engine/tvgSwImage.cpp
index d66da6a0..5a584437 100644
--- a/src/lib/sw_engine/tvgSwImage.cpp
+++ b/src/lib/sw_engine/tvgSwImage.cpp
@@ -108,7 +108,7 @@ bool imagePrepared(const SwImage* image)
 }
 
 
-bool imageGenRle(SwImage* image, TVG_UNUSED const Picture* pdata, const SwSize& clip, const SwBBox& bbox, bool antiAlias, bool hasComposite)
+bool imageGenRle(SwImage* image, TVG_UNUSED const Picture* pdata, const SwSize& clip, const SwBBox& bbox, bool antiAlias, TVG_UNUSED bool hasComposite)
 {
     if ((image->rle = rleRender(image->rle, image->outline, bbox, clip, antiAlias))) return true;
 
diff --git a/src/lib/sw_engine/tvgSwRaster.cpp b/src/lib/sw_engine/tvgSwRaster.cpp
index 1e116c0e..e9ed5812 100644
--- a/src/lib/sw_engine/tvgSwRaster.cpp
+++ b/src/lib/sw_engine/tvgSwRaster.cpp
@@ -401,7 +401,7 @@ static bool _rasterImageRle(SwSurface* surface, SwRleData* rle, uint32_t *img, u
 }
 
 
-static bool _translucentImage(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
+static bool _translucentImage(SwSurface* surface, const uint32_t *img, uint32_t w, TVG_UNUSED uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
 {
     for (auto y = region.min.y; y < region.max.y; ++y) {
         auto dst = &surface->buffer[y * surface->stride + region.min.x];
@@ -419,7 +419,7 @@ static bool _translucentImage(SwSurface* surface, const uint32_t *img, uint32_t
 }
 
 
-static bool _translucentImageAlphaMask(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
+static bool _translucentImageAlphaMask(SwSurface* surface, const uint32_t *img, uint32_t w, TVG_UNUSED uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
 {
 #ifdef THORVG_LOG_ENABLED
     printf("SW_ENGINE: Transformed Image Alpha Mask Composition\n");
@@ -555,7 +555,7 @@ static bool _rasterTranslucentImage(SwSurface* surface, uint32_t *img, uint32_t
 }
 
 
-static bool _rasterImage(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t h, const SwBBox& region)
+static bool _rasterImage(SwSurface* surface, uint32_t *img, uint32_t w, TVG_UNUSED uint32_t h, const SwBBox& region)
 {
     for (auto y = region.min.y; y < region.max.y; ++y) {
         auto dst = &surface->buffer[y * surface->stride + region.min.x];
diff --git a/src/loaders/svg/tvgSvgLoader.cpp b/src/loaders/svg/tvgSvgLoader.cpp
index 48751c00..cb8261b7 100644
--- a/src/loaders/svg/tvgSvgLoader.cpp
+++ b/src/loaders/svg/tvgSvgLoader.cpp
@@ -1052,7 +1052,7 @@ static SvgNode* _createSvgNode(SvgLoaderData* loader, SvgNode* parent, const cha
 }
 
 
-static SvgNode* _createMaskNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength)
+static SvgNode* _createMaskNode(SvgLoaderData* loader, SvgNode* parent, TVG_UNUSED const char* buf, TVG_UNUSED unsigned bufLength)
 {
     loader->svgParse->node = _createNode(parent, SvgNodeType::Unknown);
     if (!loader->svgParse->node) return nullptr;