diff --git a/rpcs3/Emu/RSX/RSXTexture.cpp b/rpcs3/Emu/RSX/RSXTexture.cpp
index 9b8f4bfb2e..52f8183545 100644
--- a/rpcs3/Emu/RSX/RSXTexture.cpp
+++ b/rpcs3/Emu/RSX/RSXTexture.cpp
@@ -251,7 +251,7 @@ namespace rsx
 
 	u8 fragment_texture::convolution_filter() const
 	{
-		return ((registers[NV4097_SET_TEXTURE_FILTER + (m_index * 8)] >> 13) & 0xf);
+		return ((registers[NV4097_SET_TEXTURE_FILTER + (m_index * 8)] >> 13) & 0x7);
 	}
 
 	u8 fragment_texture::argb_signed() const
diff --git a/rpcs3/Emu/RSX/gcm_enums.h b/rpcs3/Emu/RSX/gcm_enums.h
index 61b51c3857..4c88176fa4 100644
--- a/rpcs3/Emu/RSX/gcm_enums.h
+++ b/rpcs3/Emu/RSX/gcm_enums.h
@@ -954,6 +954,8 @@ namespace gcm
 		CELL_GCM_TEXTURE_LINEAR_LINEAR = 6,
 		CELL_GCM_TEXTURE_CONVOLUTION_MIN = 7,
 		CELL_GCM_TEXTURE_CONVOLUTION_MAG = 4,
+
+		// Convolution mode
 		CELL_GCM_TEXTURE_CONVOLUTION_QUINCUNX = 1,
 		CELL_GCM_TEXTURE_CONVOLUTION_GAUSSIAN = 2,
 		CELL_GCM_TEXTURE_CONVOLUTION_QUINCUNX_ALT = 3,