diff --git a/src/compiler/glsl/opt_algebraic.cpp b/src/compiler/glsl/opt_algebraic.cpp
index 3147d25aea8..226f6245fca 100644
--- a/src/compiler/glsl/opt_algebraic.cpp
+++ b/src/compiler/glsl/opt_algebraic.cpp
@@ -983,6 +983,9 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
          ir_constant *one;
 
          switch (ir->type->base_type) {
+         case GLSL_TYPE_FLOAT16:
+            one = new(mem_ctx) ir_constant(float16_t::one(), op2_components);
+            break;
          case GLSL_TYPE_FLOAT:
             one = new(mem_ctx) ir_constant(1.0f, op2_components);
             break;