diff --git a/packages/shader-ast-glsl/src/target.ts b/packages/shader-ast-glsl/src/target.ts
index 55a130d14f..00029c9044 100644
--- a/packages/shader-ast-glsl/src/target.ts
+++ b/packages/shader-ast-glsl/src/target.ts
@@ -149,8 +149,9 @@ export const targetGLSL = (opts?: Partial<GLSLOpts>) => {
                 case "float":
                     return isNumber(v) ? ff(v) : `float(${emit(v)})`;
                 case "int":
-                case "uint":
                     return isNumber(v) ? String(v) : `${t.type}(${emit(v)})`;
+                case "uint":
+                    return isNumber(v) ? `${v}u` : `${t.type}(${emit(v)})`;
                 default: {
                     if (isVec(t) || isMat(t)) {
                         return `${t.type}(${$list(v)})`;
diff --git a/packages/shader-ast-glsl/test/index.ts b/packages/shader-ast-glsl/test/index.ts
index da1e09e089..7659887e91 100644
--- a/packages/shader-ast-glsl/test/index.ts
+++ b/packages/shader-ast-glsl/test/index.ts
@@ -1,5 +1,6 @@
 import {
     $,
+    bool,
     FALSE,
     float,
     input,
@@ -42,15 +43,24 @@ group("shader-ast (glsl)", {
     lit: () => {
         assert.strictEqual(fs300(TRUE), "true");
         assert.strictEqual(fs300(FALSE), "false");
+        assert.strictEqual(fs300(bool(1)), "true");
+        assert.strictEqual(fs300(bool(int(1))), "bool(1)");
+        assert.strictEqual(fs300(bool(uint(1))), "bool(1u)");
+        assert.strictEqual(fs300(bool(float(1))), "bool(1.0)");
         assert.strictEqual(fs300(float(0)), "0.0");
         assert.strictEqual(fs300(float(-1)), "-1.0");
+        assert.strictEqual(fs300(float(uint(1))), "float(1u)");
         assert.strictEqual(fs300(float(3.1415)), "3.1415");
+        assert.strictEqual(fs300(int(false)), "0");
+        assert.strictEqual(fs300(int(true)), "1");
         assert.strictEqual(fs300(int(0)), "0");
         assert.strictEqual(fs300(int(-1)), "-1");
         assert.strictEqual(fs300(int(3.1415)), "3");
-        assert.strictEqual(fs300(uint(0)), "0");
-        assert.strictEqual(fs300(uint(-1)), "4294967295");
-        assert.strictEqual(fs300(uint(3.1415)), "3");
+        assert.strictEqual(fs300(uint(false)), "0u");
+        assert.strictEqual(fs300(uint(true)), "1u");
+        assert.strictEqual(fs300(uint(0)), "0u");
+        assert.strictEqual(fs300(uint(-1)), "4294967295u");
+        assert.strictEqual(fs300(uint(3.1415)), "3u");
     },
 
     vec2: () => {