diff --git a/build.zig b/build.zig
index 9727be0843ad1bcbefecdf4714761a69003ebcdb..3d54067186a9ef84171623fbfbc28d0d70586738 100644
--- a/build.zig
+++ b/build.zig
@@ -33,6 +33,8 @@ pub fn build(b: &Builder) {
     docs_step.dependOn(&docgen_cmd.step);
     docs_step.dependOn(&docgen_home_cmd.step);
 
+    const test_step = b.step("test", "Run all the tests");
+
     if (findLLVM(b)) |llvm| {
         // find the stage0 build artifacts because we're going to re-use config.h and zig_cpp library
         const build_info = b.exec([][]const u8{b.zig_exe, "BUILD_INFO"});
@@ -72,15 +74,16 @@ pub fn build(b: &Builder) {
 
         b.default_step.dependOn(&exe.step);
         b.default_step.dependOn(docs_step);
+        test_step.dependOn(&exe.step);
 
         b.installArtifact(exe);
         installStdLib(b);
+
     }
 
 
     const test_filter = b.option([]const u8, "test-filter", "Skip tests that do not match filter");
     const with_lldb = b.option(bool, "with-lldb", "Run tests in LLDB to get a backtrace if one fails") ?? false;
-    const test_step = b.step("test", "Run all the tests");
 
     test_step.dependOn(docs_step);
 
diff --git a/src-self-hosted/main.zig b/src-self-hosted/main.zig
index ff8fb37b42e4024dababeb01aeb1ea08baaf20ce..a737cd950365d88b8810b6643db78c9cf6abf90c 100644
--- a/src-self-hosted/main.zig
+++ b/src-self-hosted/main.zig
@@ -626,3 +626,8 @@ fn findZigLibDir(allocator: &mem.Allocator) -> %[]u8 {
 
     return error.FileNotFound;
 }
+
+test "import tests" {
+    _ = @import("tokenizer.zig");
+    _ = @import("parser.zig");
+}
diff --git a/src-self-hosted/tokenizer.zig b/src-self-hosted/tokenizer.zig
index de2fbdc1ee8b2a1484f773f3407194ea70be02e9..92312a063a98a4f21203a30017ae98f56ed38f07 100644
--- a/src-self-hosted/tokenizer.zig
+++ b/src-self-hosted/tokenizer.zig
@@ -204,6 +204,7 @@ pub const Tokenizer = struct {
         LineComment,
         Zero,
         IntegerLiteral,
+        IntegerLiteralWithRadix,
         NumberDot,
         FloatFraction,
         FloatExponentUnsigned,
@@ -454,7 +455,7 @@ pub const Tokenizer = struct {
                 },
                 State.Zero => switch (c) {
                     'b', 'o', 'x' => {
-                        state = State.IntegerLiteral;
+                        state = State.IntegerLiteralWithRadix;
                     },
                     else => {
                         // reinterpret as a normal number
@@ -469,6 +470,16 @@ pub const Tokenizer = struct {
                     'p', 'P', 'e', 'E' => {
                         state = State.FloatExponentUnsigned;
                     },
+                    '0'...'9' => {},
+                    else => break,
+                },
+                State.IntegerLiteralWithRadix => switch (c) {
+                    '.' => {
+                        state = State.NumberDot;
+                    },
+                    'p', 'P' => {
+                        state = State.FloatExponentUnsigned;
+                    },
                     '0'...'9', 'a'...'f', 'A'...'F' => {},
                     else => break,
                 },
@@ -485,7 +496,7 @@ pub const Tokenizer = struct {
                     },
                 },
                 State.FloatFraction => switch (c) {
-                    'p', 'P', 'e', 'E' => {
+                    'p', 'P' => {
                         state = State.FloatExponentUnsigned;
                     },
                     '0'...'9', 'a'...'f', 'A'...'F' => {},