diff --git a/include/cpp.h b/include/cpp.h
index 892e281..fa6011b 100644
--- a/include/cpp.h
+++ b/include/cpp.h
@@ -76,6 +76,7 @@ typedef enum _CppCode
 	CPP_CODE_OPERATOR_OR,
 	CPP_CODE_OPERATOR_PEQUALS,
 	CPP_CODE_OPERATOR_PLUS,
+	CPP_CODE_OPERATOR_QUESTION,
 	CPP_CODE_OPERATOR_RBRACE,
 	CPP_CODE_OPERATOR_RBRACKET,
 	CPP_CODE_OPERATOR_RPAREN,
diff --git a/src/cpp.c b/src/cpp.c
index b364a1d..ca025e6 100644
--- a/src/cpp.c
+++ b/src/cpp.c
@@ -117,6 +117,7 @@ static const CppOperator _cpp_operators[] =
 	{ CPP_CODE_OPERATOR_DPLUS,	"++"	},
 	{ CPP_CODE_OPERATOR_PEQUALS,	"+="	},
 	{ CPP_CODE_OPERATOR_PLUS,	"+"	},
+	{ CPP_CODE_OPERATOR_QUESTION,	"?"	},
 	{ CPP_CODE_OPERATOR_RBRACE,	"}"	},
 	{ CPP_CODE_OPERATOR_RBRACKET,	"]"	},
 	{ CPP_CODE_OPERATOR_RPAREN,	")"	},