diff --git a/src/gallium/drivers/crocus/crocus_screen.c b/src/gallium/drivers/crocus/crocus_screen.c
index 64fad809de4..40673ebe17e 100644
--- a/src/gallium/drivers/crocus/crocus_screen.c
+++ b/src/gallium/drivers/crocus/crocus_screen.c
@@ -196,6 +196,7 @@ crocus_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_FENCE_SIGNAL:
    case PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION:
    case PIPE_CAP_GL_CLAMP:
+   case PIPE_CAP_LEGACY_MATH_RULES:
       return true;
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD: