diff --git a/src/constants.jl b/src/constants.jl
index e5b5a1df..beea25af 100644
--- a/src/constants.jl
+++ b/src/constants.jl
@@ -28,7 +28,8 @@ GDT_Unknown::GDALDataType = 0x00000000
     GDT_CInt32 = 11,
     GDT_CFloat32 = 12,
     GDT_CFloat64 = 13,
-    GDT_TypeCount = 14,
+    GDT_Int8 = 14,
+    GDT_TypeCount = 15,
 )
 
 """
diff --git a/src/types.jl b/src/types.jl
index eb4c434f..38e85909 100644
--- a/src/types.jl
+++ b/src/types.jl
@@ -280,6 +280,7 @@ end
     GDALDataType::GDAL.GDALDataType,
     GDT_Unknown::GDAL.GDT_Unknown,
     GDT_Byte::GDAL.GDT_Byte,
+    GDT_Int8::GDAL.GDT_Int8,
     GDT_UInt16::GDAL.GDT_UInt16,
     GDT_Int16::GDAL.GDT_Int16,
     GDT_UInt32::GDAL.GDT_UInt32,
@@ -306,6 +307,7 @@ end
     GDALDataType::DataType,
     GDT_Unknown::Any,
     GDT_Byte::UInt8,
+    GDT_Int8::Int8,
     GDT_UInt16::UInt16,
     GDT_Int16::Int16,
     GDT_UInt32::UInt32,