diff --git a/src/host/path_normalize.c b/src/host/path_normalize.c
index 64c5cf25..47de06fd 100644
--- a/src/host/path_normalize.c
+++ b/src/host/path_normalize.c
@@ -13,6 +13,7 @@ int path_normalize(lua_State* L)
 	char buffer[0x4000];
 	char* src;
 	char* dst;
+	char* ptr;
 	char last;
 
 	const char* path = luaL_checkstring(L, 1);
@@ -30,6 +31,24 @@ int path_normalize(lua_State* L)
 			ch = '/';
 		}
 
+		/* filter out .. */
+		if (ch == '.' && last == '.') {
+			ptr = dst - 3;
+			while (ptr >= buffer) {
+				if (*ptr != '/') {
+					--ptr;
+				}
+				else {
+					dst = ptr;
+					break;
+				}
+			}
+			if (ptr >= buffer) {
+				++src;
+				continue;
+			}
+		}
+
 		/* add to the result, filtering out duplicate slashes */
 		if (ch != '/' || last != '/') {
 			*(dst++) = ch;
diff --git a/tests/base/test_path.lua b/tests/base/test_path.lua
index 31dc208b..cd3e7664 100755
--- a/tests/base/test_path.lua
+++ b/tests/base/test_path.lua
@@ -364,3 +364,28 @@
 	function suite.wildcards_escapeStarStar()
 		test.isequal("Images/.*%.bmp", path.wildcards("Images/**.bmp"))
 	end
+
+
+
+--
+-- path.normalize tests
+--
+	function suite.normalize_Test1()
+		local p = path.normalize("d:/game/../test")
+		test.isequal("d:/test", p)
+	end
+
+	function suite.normalize_Test2()
+		local p = path.normalize("d:/game/../../test")
+		test.isequal("d:/../test", p)
+	end
+
+	function suite.normalize_Test3()
+		local p = path.normalize("../../test")
+		test.isequal("../../test", p)
+	end
+
+	function suite.normalize()
+		test.isequal("d:/ProjectB/bin", path.normalize("d:/ProjectA/../ProjectB/bin"))
+		test.isequal("/ProjectB/bin", path.normalize("/ProjectA/../ProjectB/bin"))
+	end
\ No newline at end of file