diff --git a/internal/shader/shader_test.go b/internal/shader/shader_test.go
index fe4ca2f11..898a1107b 100644
--- a/internal/shader/shader_test.go
+++ b/internal/shader/shader_test.go
@@ -55,7 +55,7 @@ func Foo(foo vec2) vec4 {
 	return vec4(foo, 0, 1)
 }`,
 			VS: `void F0(in vec2 l0, out vec4 l1) {
-	l1 = vec4(l0, 0, 1);
+	l1 = vec4(l0, 0.0, 1.0);
 	return;
 }`,
 		},
@@ -124,10 +124,9 @@ func Foo(foo vec2) vec4 {
 	r := vec4(foo, 0, 1)
 	return r
 }`,
-			// TODO: number literals must be floats.
 			VS: `void F0(in vec2 l0, out vec4 l1) {
 	vec4 l2 = vec4(0.0);
-	l2 = vec4(l0, 0, 1);
+	l2 = vec4(l0, 0.0, 1.0);
 	l1 = l2;
 	return;
 }`,
diff --git a/internal/shaderir/glsl.go b/internal/shaderir/glsl.go
index caa9a0d39..4b0d41c07 100644
--- a/internal/shaderir/glsl.go
+++ b/internal/shaderir/glsl.go
@@ -234,7 +234,8 @@ func (p *Program) glslBlock(b *Block, level int, localVarIndex int) []string {
 	glslExpr = func(e *Expr) string {
 		switch e.Type {
 		case IntExpr:
-			return fmt.Sprintf("%d", e.Int)
+			// TODO: Cast to int if the context requries integers.
+			return fmt.Sprintf("%d.0", e.Int)
 		case FloatExpr:
 			return fmt.Sprintf("%.9e", e.Float)
 		case UniformVariable: