diff --git a/.tests/parse/file/testfiles/header_invalid_name_type.json b/.tests/parse/file/testfiles/header_invalid_name_type.json
new file mode 100644
index 0000000..8c91a79
--- /dev/null
+++ b/.tests/parse/file/testfiles/header_invalid_name_type.json
@@ -0,0 +1,15 @@
+{
+	"name": 4,
+	"size": {
+		"x": 50,
+		"y": 25,
+		"z": 75
+	},
+	"offset": {
+		"x": 3,
+		"y": 0,
+		"z": 5
+	},
+	"type": "full",
+	"generator": "WorldEditAdditions v1.14"
+}
\ No newline at end of file
diff --git a/.tests/parse/file/testfiles/header_invalid_noname.json b/.tests/parse/file/testfiles/header_invalid_noname.json
new file mode 100644
index 0000000..1ba2276
--- /dev/null
+++ b/.tests/parse/file/testfiles/header_invalid_noname.json
@@ -0,0 +1,14 @@
+{
+	"size": {
+		"x": 50,
+		"y": 25,
+		"z": 75
+	},
+	"offset": {
+		"x": 3,
+		"y": 0,
+		"z": 5
+	},
+	"type": "full",
+	"generator": "WorldEditAdditions v1.14"
+}
\ No newline at end of file
diff --git a/.tests/parse/file/weaschem_header.test.lua b/.tests/parse/file/weaschem_header.test.lua
index 9b5179a..e5b8703 100644
--- a/.tests/parse/file/weaschem_header.test.lua
+++ b/.tests/parse/file/weaschem_header.test.lua
@@ -47,4 +47,21 @@ describe("parse.file.weaschem.parse_header", function()
 		assert.are.same("SUCCESS", code)
 		assert.are.same(parse_json(content), result)
 	end)
+	it("should complain for an invalid header with no name", function()
+		local content = get_json_string("invalid_noname")
+		assert.are_not.same(nil, content)
+		local success, code, result = weaschem.parse_header(content)
+		assert.are.same(false, success)
+		assert.are.same("HEADER_NO_NAME", code)
+		assert.are.same("string", type(result))
+	end)
+	it("should complain for an invalid header with name of wrong type", function()
+		local content = get_json_string("invalid_name_type")
+		assert.are_not.same(nil, content)
+		local success, code, result = weaschem.parse_header(content)
+		assert.are.same(false, success)
+		assert.are.same("HEADER_NAME_INVALID", code)
+		assert.are.same("string", type(result))
+	end)
 end)
+
diff --git a/worldeditadditions_core/utils/parse/file/weaschem.lua b/worldeditadditions_core/utils/parse/file/weaschem.lua
index b71d140..ae2510a 100644
--- a/worldeditadditions_core/utils/parse/file/weaschem.lua
+++ b/worldeditadditions_core/utils/parse/file/weaschem.lua
@@ -55,14 +55,14 @@ function weaschem.parse_header(source)
 		header["name"] = raw_obj["name"]
 		if type(header["name"]) ~= "string" then
 			return false, "HEADER_NAME_INVALID",
-				"Invalid name in header: expected string, but found value of type '"..type(raw_obj["name"])"'."
+				"Invalid name in header: expected string, but found value of type '"..type(raw_obj["name"]).."'."
 		end
 	end
 	if raw_obj["description"] ~= nil then
 		header["description"] = raw_obj["description"]
 		if type(header["description"]) ~= "string" then
 			return false, "HEADER_DESCRIPTION_INVALID",
-				"Invalid description in header: expected string, but found value of type '" .. type(raw_obj["description"]) "'."
+				"Invalid description in header: expected string, but found value of type '"..type(raw_obj["description"]).."'."
 		end
 	end
 	
@@ -104,7 +104,7 @@ function weaschem.parse_header(source)
 		header["generator"] = raw_obj["generator"]
 		if type(header["generator"]) ~= "string" then
 			return false, "HEADER_GENERATOR_INVALID",
-				"Invalid generator in header: expected string, but found value of generator '" .. type(raw_obj["generator"]) "'."
+				"Invalid generator in header: expected string, but found value of generator '"..type(raw_obj["generator"]).."'."
 		end
 	end