diff --git a/src/analysis.zig b/src/analysis.zig
index bc35d32..078d116 100644
--- a/src/analysis.zig
+++ b/src/analysis.zig
@@ -25,7 +25,7 @@ pub const Analyzer = struct {
         };
     }
 
-    fn setErrContext(self: *@This(), comptime fmt: ?[]const u8, args: var) void {
+    fn setErrContext(self: *@This(), comptime fmt: ?[]const u8, args: anytype) void {
         if (fmt == null) {
             self.err_ctx = null;
             return;
@@ -42,7 +42,7 @@ pub const Analyzer = struct {
         self.err_tok = tok;
     }
 
-    fn doError(self: *@This(), comptime fmt: []const u8, args: var) void {
+    fn doError(self: *@This(), comptime fmt: []const u8, args: anytype) void {
         self.hadError = true;
 
         std.debug.warn("analysis error", .{});
diff --git a/src/ast_printer.zig b/src/ast_printer.zig
index 328f880..1f248ee 100644
--- a/src/ast_printer.zig
+++ b/src/ast_printer.zig
@@ -14,12 +14,12 @@ fn printIdent(ident: usize) void {
     }
 }
 
-fn print(ident: usize, comptime fmt: []const u8, args: var) void {
+fn print(ident: usize, comptime fmt: []const u8, args: anytype) void {
     printIdent(ident);
     std.debug.warn(fmt, args);
 }
 
-fn printBlock(ident: usize, block: var, endNewline: bool) void {
+fn printBlock(ident: usize, block: anytype, endNewline: bool) void {
     std.debug.warn("(\n", .{});
 
     for (block.toSlice()) |stmt| {
@@ -156,7 +156,7 @@ fn binOpToStr(op: BinaryOperator) ?[]const u8 {
     return null;
 }
 
-fn printBinOp(inner: var) void {
+fn printBinOp(inner: anytype) void {
     std.debug.warn("({}", .{binOpToStr(inner.op)});
     printTwoExprs(inner.left, inner.right);
     std.debug.warn(")", .{});
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
index ff2d6f6..ccde966 100644
--- a/src/codegen/llvm.zig
+++ b/src/codegen/llvm.zig
@@ -64,7 +64,7 @@ pub const Codegen = struct {
         };
     }
 
-    fn emitForVariableType(self: *@This(), vari: var, get: var, kv: var) !llvm.LLVMValueRef {
+    fn emitForVariableType(self: *@This(), vari: anytype, get: anytype, kv: anytype) !llvm.LLVMValueRef {
         var sym = kv.value;
 
         switch (sym.*) {
@@ -89,7 +89,7 @@ pub const Codegen = struct {
 
     fn emitExpr(
         self: *Codegen,
-        builder: var,
+        builder: anytype,
         expr: *const ast.Expr,
     ) anyerror!llvm.LLVMValueRef {
         return switch (expr.*) {
@@ -260,7 +260,7 @@ pub const Codegen = struct {
         };
     }
 
-    fn emitStmt(self: *Codegen, builder: var, stmt: *ast.Stmt) anyerror!void {
+    fn emitStmt(self: *Codegen, builder: anytype, stmt: *ast.Stmt) anyerror!void {
         std.debug.warn("cgen: emitting stmt {}\n", .{@as(ast.StmtType, stmt.*)});
 
         switch (stmt.*) {
diff --git a/src/errors.zig b/src/errors.zig
index 88c05f1..5eb089e 100644
--- a/src/errors.zig
+++ b/src/errors.zig
@@ -12,7 +12,7 @@ pub fn reportN(line: usize, message: []const u8) void {
     report(line, "", message);
 }
 
-pub fn reportFmt(line: usize, ctx_opt: ?[]const u8, comptime fmt: []const u8, args: var) void {
+pub fn reportFmt(line: usize, ctx_opt: ?[]const u8, comptime fmt: []const u8, args: anytype) void {
     if (ctx_opt) |ctx| {
         std.debug.warn("[line {}] Error on {}", .{ line, ctx });
     } else {
diff --git a/src/parsers.zig b/src/parsers.zig
index 391b48e..1f19895 100644
--- a/src/parsers.zig
+++ b/src/parsers.zig
@@ -94,7 +94,7 @@ pub const Parser = struct {
         self.tokens.deinit();
     }
 
-    fn setErrContext(self: *Parser, comptime fmt: ?[]const u8, args: var) void {
+    fn setErrContext(self: *Parser, comptime fmt: ?[]const u8, args: anytype) void {
         if (fmt == null) {
             self.err_ctx = null;
             return;
@@ -104,7 +104,7 @@ pub const Parser = struct {
         self.err_ctx = std.fmt.bufPrint(buf, fmt.?, args) catch unreachable;
     }
 
-    fn doError(self: *Parser, comptime fmt: []const u8, args: var) ParseError {
+    fn doError(self: *Parser, comptime fmt: []const u8, args: anytype) ParseError {
         self.hadError = true;
 
         std.debug.warn("parser error at line {}", .{self.scanner.line});