diff --git a/src/glsl/glsl_types.cpp b/src/glsl/glsl_types.cpp
index 02d85b8f6e0..dee97096c71 100644
--- a/src/glsl/glsl_types.cpp
+++ b/src/glsl/glsl_types.cpp
@@ -446,6 +446,8 @@ const glsl_type *glsl_type::get_scalar_type() const
       return int_type;
    case GLSL_TYPE_FLOAT:
       return float_type;
+   case GLSL_TYPE_BOOL:
+      return bool_type;
    default:
       /* Handle everything else */
       return type;