diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7f8c9c5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+deelang
+*.o
+parser.h
+lexer.h
\ No newline at end of file
diff --git a/lexer.l b/lexer.l
index bb0447a..24667b6 100644
--- a/lexer.l
+++ b/lexer.l
@@ -39,7 +39,7 @@ if					return IF;
 else					return ELSE;
 elif 					return ELIF;
 {digit}+|{digit}*\.{digit}+		yylval.num = atof(yytext); return NUM;
-{letter}({letter}|{digit}|[?-])*	yylval.sym = yytext; return ID;
+{letter}({letter}|{digit}|[?.-])*	yylval.sym = yytext; return ID;
 "<-"					return GETS;
 "->"					return MAPS;
 [(){}.,*/+-]				return yytext[0];