diff --git a/src/image.cpp b/src/image.cpp
index 5141860b7..9772fb7dc 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -88,7 +88,6 @@ template struct MAPNIK_DECL image_dimensions<65535>;
 
 } // end ns detail
 
-template class MAPNIK_DECL image<null_t>;
 template class MAPNIK_DECL image<rgba8_t>;
 template class MAPNIK_DECL image<gray8_t>;
 template class MAPNIK_DECL image<gray8s_t>;
diff --git a/src/image_util_jpeg.cpp b/src/image_util_jpeg.cpp
index 13860fd4e..32d1979a3 100644
--- a/src/image_util_jpeg.cpp
+++ b/src/image_util_jpeg.cpp
@@ -119,7 +119,6 @@ void jpeg_saver::operator() (T const& image) const
     throw image_writer_exception("Mapnik does not support jpeg grayscale images");
 }
 
-template void jpeg_saver::operator()<image_rgba8> (image_rgba8 const& image) const;
 template void jpeg_saver::operator()<image_gray8> (image_gray8 const& image) const;
 template void jpeg_saver::operator()<image_gray8s> (image_gray8s const& image) const;
 template void jpeg_saver::operator()<image_gray16> (image_gray16 const& image) const;
@@ -130,7 +129,6 @@ template void jpeg_saver::operator()<image_gray32f> (image_gray32f const& image)
 template void jpeg_saver::operator()<image_gray64> (image_gray64 const& image) const;
 template void jpeg_saver::operator()<image_gray64s> (image_gray64s const& image) const;
 template void jpeg_saver::operator()<image_gray64f> (image_gray64f const& image) const;
-template void jpeg_saver::operator()<image_view_rgba8> (image_view_rgba8 const& image) const;
 template void jpeg_saver::operator()<image_view_gray8> (image_view_gray8 const& image) const;
 template void jpeg_saver::operator()<image_view_gray8s> (image_view_gray8s const& image) const;
 template void jpeg_saver::operator()<image_view_gray16> (image_view_gray16 const& image) const;
diff --git a/src/image_util_png.cpp b/src/image_util_png.cpp
index f09d58019..322acd226 100644
--- a/src/image_util_png.cpp
+++ b/src/image_util_png.cpp
@@ -316,7 +316,6 @@ void png_saver_pal::operator() (T const& image) const
 #endif
 }
 
-template void png_saver::operator()<image_rgba8> (image_rgba8 const& image) const;
 template void png_saver::operator()<image_gray8> (image_gray8 const& image) const;
 template void png_saver::operator()<image_gray8s> (image_gray8s const& image) const;
 template void png_saver::operator()<image_gray16> (image_gray16 const& image) const;
@@ -327,7 +326,6 @@ template void png_saver::operator()<image_gray32f> (image_gray32f const& image)
 template void png_saver::operator()<image_gray64> (image_gray64 const& image) const;
 template void png_saver::operator()<image_gray64s> (image_gray64s const& image) const;
 template void png_saver::operator()<image_gray64f> (image_gray64f const& image) const;
-template void png_saver::operator()<image_view_rgba8> (image_view_rgba8 const& image) const;
 template void png_saver::operator()<image_view_gray8> (image_view_gray8 const& image) const;
 template void png_saver::operator()<image_view_gray8s> (image_view_gray8s const& image) const;
 template void png_saver::operator()<image_view_gray16> (image_view_gray16 const& image) const;
@@ -338,7 +336,6 @@ template void png_saver::operator()<image_view_gray32f> (image_view_gray32f cons
 template void png_saver::operator()<image_view_gray64> (image_view_gray64 const& image) const;
 template void png_saver::operator()<image_view_gray64s> (image_view_gray64s const& image) const;
 template void png_saver::operator()<image_view_gray64f> (image_view_gray64f const& image) const;
-template void png_saver_pal::operator()<image_rgba8> (image_rgba8 const& image) const;
 template void png_saver_pal::operator()<image_gray8> (image_gray8 const& image) const;
 template void png_saver_pal::operator()<image_gray8s> (image_gray8s const& image) const;
 template void png_saver_pal::operator()<image_gray16> (image_gray16 const& image) const;
@@ -349,7 +346,6 @@ template void png_saver_pal::operator()<image_gray32f> (image_gray32f const& ima
 template void png_saver_pal::operator()<image_gray64> (image_gray64 const& image) const;
 template void png_saver_pal::operator()<image_gray64s> (image_gray64s const& image) const;
 template void png_saver_pal::operator()<image_gray64f> (image_gray64f const& image) const;
-template void png_saver_pal::operator()<image_view_rgba8> (image_view_rgba8 const& image) const;
 template void png_saver_pal::operator()<image_view_gray8> (image_view_gray8 const& image) const;
 template void png_saver_pal::operator()<image_view_gray8s> (image_view_gray8s const& image) const;
 template void png_saver_pal::operator()<image_view_gray16> (image_view_gray16 const& image) const;
diff --git a/src/image_util_webp.cpp b/src/image_util_webp.cpp
index c7b96aca5..99e6690cc 100644
--- a/src/image_util_webp.cpp
+++ b/src/image_util_webp.cpp
@@ -360,7 +360,6 @@ void webp_saver::operator() (T const& image) const
     throw image_writer_exception("Mapnik does not support webp grayscale images");
 }
 
-template void webp_saver::operator()<image_rgba8> (image_rgba8 const& image) const;
 template void webp_saver::operator()<image_gray8> (image_gray8 const& image) const;
 template void webp_saver::operator()<image_gray8s> (image_gray8s const& image) const;
 template void webp_saver::operator()<image_gray16> (image_gray16 const& image) const;
@@ -371,7 +370,6 @@ template void webp_saver::operator()<image_gray32f> (image_gray32f const& image)
 template void webp_saver::operator()<image_gray64> (image_gray64 const& image) const;
 template void webp_saver::operator()<image_gray64s> (image_gray64s const& image) const;
 template void webp_saver::operator()<image_gray64f> (image_gray64f const& image) const;
-template void webp_saver::operator()<image_view_rgba8> (image_view_rgba8 const& image) const;
 template void webp_saver::operator()<image_view_gray8> (image_view_gray8 const& image) const;
 template void webp_saver::operator()<image_view_gray8s> (image_view_gray8s const& image) const;
 template void webp_saver::operator()<image_view_gray16> (image_view_gray16 const& image) const;