diff --git a/oepl-definitions.h b/oepl-definitions.h
index 18ea7457..e3cae105 100755
--- a/oepl-definitions.h
+++ b/oepl-definitions.h
@@ -122,6 +122,9 @@
                                                     // [uint32_t uncompressed size][2 byte zlib header][zlib compressed image]
                                                     // image format: [uint8_t header length][uint16_t width][uint16_t height][uint8_t bpp (lower 4)][img data]
 
+#define DATATYPE_IMG_G5_1BPP 0x31          // G5 compressed 1BPP
+#define DATATYPE_IMG_G5_2BPP 0x32          // G5 compressed 2BPP
+
 #define DATATYPE_UK_SEGMENTED 0x51         // Segmented data for the UK Segmented display type (contained in availableData Reply)
 #define DATATYPE_EU_SEGMENTED 0x52         // Segmented data for the EU/DE Segmented display type (contained in availableData Reply)
 #define DATATYPE_NFC_RAW_CONTENT 0xA0      // raw memory content for the NT3H1101