diff --git a/src/pugixml.cpp b/src/pugixml.cpp
index e64639b..1472b7d 100644
--- a/src/pugixml.cpp
+++ b/src/pugixml.cpp
@@ -289,7 +289,7 @@ namespace
 		192, 192, 192, 192, 192, 192, 192, 192,    192, 192, 192, 192, 192, 192, 192, 192
 	};
 	
-	bool is_chartype(char c, chartype ct)
+	inline bool is_chartype(char c, chartype ct)
 	{
 		return !!(chartype_table[static_cast<unsigned char>(c)] & ct);
 	}
diff --git a/src/pugixpath.cpp b/src/pugixpath.cpp
index 4261945..fce7459 100644
--- a/src/pugixpath.cpp
+++ b/src/pugixpath.cpp
@@ -64,7 +64,7 @@ namespace
 		10, 10, 10, 10, 10, 10, 10, 10,    10, 10, 10, 10, 10, 10, 10, 10
 	};
 	
-	bool is_chartypex(char c, chartypex ct)
+	inline bool is_chartypex(char c, chartypex ct)
 	{
 		return !!(chartypex_table[static_cast<unsigned char>(c)] & ct);
 	}