diff --git a/syntaxes/opencl.tmLanguage.json b/syntaxes/opencl.tmLanguage.json
index d47d371..6dce0d3 100644
--- a/syntaxes/opencl.tmLanguage.json
+++ b/syntaxes/opencl.tmLanguage.json
@@ -22,7 +22,7 @@
 				},
 				{
 					"name": "storage.type.opencl.c",
-					"match": "\\b(ptrdiff_t|uchar|ulong)\\b"
+					"match": "\\b(uchar|ushort|uint|ulong|size_t|ptrdiff_t|intptr_t|uintptr_t)\\b"
 				},
 				{
 					"name": "storage.type.opencl.c.vector2",
diff --git a/test/theme.test.cl b/test/theme.test.cl
index 437da8a..283ad2a 100644
--- a/test/theme.test.cl
+++ b/test/theme.test.cl
@@ -8,9 +8,14 @@ void highlighting_test()
 	// storage.type.opencl.c
 	highlight<half>();
 	// storage.type.opencl.c
-	highlight<ptrdiff_t>();
 	highlight<uchar>();
+	highlight<ushort>();
+	highlight<uint>();
 	highlight<ulong>();
+	highlight<size_t>();
+	highlight<ptrdiff_t>();
+	highlight<intptr_t>();
+	highlight<uintptr_t>();
 	// storage.type.opencl.c.vector2
 	highlight<char2>();
 	highlight<short2>();