diff --git a/source/Irrlicht/CD3D9Driver.cpp b/source/Irrlicht/CD3D9Driver.cpp
index c376ac8d..7189a7d5 100644
--- a/source/Irrlicht/CD3D9Driver.cpp
+++ b/source/Irrlicht/CD3D9Driver.cpp
@@ -3269,6 +3269,9 @@ ITexture* CD3D9Driver::addRenderTargetTexture(const core::dimension2d<u32>& size
 											  const io::path& name,
 											  const ECOLOR_FORMAT format)
 {
+	if ( IImage::isCompressedFormat(format) )
+		return 0;
+
 	CD3D9Texture* tex = new CD3D9Texture(this, size, name, ETT_2D, format);
 	if (tex)
 	{
@@ -3287,6 +3290,9 @@ ITexture* CD3D9Driver::addRenderTargetTexture(const core::dimension2d<u32>& size
 ITexture* CD3D9Driver::addRenderTargetTextureCubemap(const irr::u32 sideLen,
 	const io::path& name, const ECOLOR_FORMAT format)
 {
+	if ( IImage::isCompressedFormat(format) )
+		return 0;
+
 	CD3D9Texture* tex = new CD3D9Texture(this, core::dimension2d<u32>(sideLen, sideLen), name, ETT_CUBEMAP, format);
 	if (tex)
 	{
diff --git a/source/Irrlicht/COpenGLDriver.cpp b/source/Irrlicht/COpenGLDriver.cpp
index c7e183ee..b4b63c6e 100644
--- a/source/Irrlicht/COpenGLDriver.cpp
+++ b/source/Irrlicht/COpenGLDriver.cpp
@@ -3769,6 +3769,9 @@ IVideoDriver* COpenGLDriver::getVideoDriver()
 ITexture* COpenGLDriver::addRenderTargetTexture(const core::dimension2d<u32>& size,
 	const io::path& name, const ECOLOR_FORMAT format)
 {
+	if ( IImage::isCompressedFormat(format) )
+		return 0;
+
 	//disable mip-mapping
 	bool generateMipLevels = getTextureCreationFlag(ETCF_CREATE_MIP_MAPS);
 	setTextureCreationFlag(ETCF_CREATE_MIP_MAPS, false);
@@ -3796,6 +3799,9 @@ ITexture* COpenGLDriver::addRenderTargetTexture(const core::dimension2d<u32>& si
 //! Creates a render target texture for a cubemap
 ITexture* COpenGLDriver::addRenderTargetTextureCubemap(const irr::u32 sideLen, const io::path& name, const ECOLOR_FORMAT format)
 {
+	if ( IImage::isCompressedFormat(format) )
+		return 0;
+
 	//disable mip-mapping
 	bool generateMipLevels = getTextureCreationFlag(ETCF_CREATE_MIP_MAPS);
 	setTextureCreationFlag(ETCF_CREATE_MIP_MAPS, false);
@@ -4227,10 +4233,13 @@ bool COpenGLDriver::getColorFormatParameters(ECOLOR_FORMAT format, GLint& intern
 			pixelType = GL_UNSIGNED_INT_8_8_8_8_REV;
 		break;
 	case ECF_DXT1:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-		pixelFormat = GL_BGRA_EXT;
-		pixelType = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+		if (queryOpenGLFeature(COpenGLExtensionHandler::IRR_EXT_texture_compression_s3tc))
+		{
+			supported = true;
+			internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+			pixelFormat = GL_BGRA_EXT;
+			pixelType = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+		}
 		break;
 	case ECF_DXT2:
 	case ECF_DXT3: