diff --git a/HISTORY b/HISTORY
index 8c52d60..910b12e 100755
--- a/HISTORY
+++ b/HISTORY
@@ -1,3 +1,6 @@
+Jan. 3 2017
+Fixed a parsing bug with unary negative operator
+
 Nov. 28 2017
 Fixed a referencing bug with the IF statement
 
diff --git a/core/my_basic.c b/core/my_basic.c
index 485ba0b..9fe8c73 100755
--- a/core/my_basic.c
+++ b/core/my_basic.c
@@ -5662,7 +5662,7 @@ _routine:
 	/* _func_t */
 	if(!context->last_symbol ||
 		(context->last_symbol && ((context->last_symbol->type == _DT_FUNC && context->last_symbol->data.func->pointer != _core_close_bracket) ||
-		context->last_symbol->type == _DT_SEP))) {
+		context->last_symbol->type == _DT_SEP || context->last_symbol->type == _DT_EOS))) {
 		if(strcmp("-", sym) == 0) {
 			ptr = (intptr_t)_core_neg;
 			memcpy(*value, &ptr, sizeof(intptr_t));