diff --git a/src/compile.c b/src/compile.c
index e907862..6ac0006 100644
--- a/src/compile.c
+++ b/src/compile.c
@@ -175,6 +175,16 @@ char* compile_expression(tSyntaxElement* syntaxelement) {
 								string_append(&result,compile_expression(token->next->next));
 								string_append(&result,"]");
 
+							} else if (strcmp(token->content.string, "neg") == 0) {
+
+								string_append(&result,"-");
+								string_append(&result,compile_expression_wrapped(token->next));
+
+							} else if (strcmp(token->content.string, "not") == 0) {
+
+								string_append(&result,"not");
+								string_append(&result,compile_expression_wrapped(token->next));
+
 							} else {
 
 								string_append(&result,token->content.string);