diff --git a/src/vrend_shader.c b/src/vrend_shader.c
index d8b45e9..a7c7e2d 100644
--- a/src/vrend_shader.c
+++ b/src/vrend_shader.c
@@ -4577,9 +4577,10 @@ static char *emit_ios(struct dump_ctx *ctx, char *glsl_hdr)
                         ctx->outputs[i].fbfetch_used ? "inout" : "out",
                         ctx->outputs[i].glsl_name);
             STRCAT_WITH_RET(glsl_hdr, buf);
-         } else if (ctx->outputs[i].invariant) {
-            snprintf(buf, 255, "%s %s;\n",
-               ctx->outputs[i].invariant ? "invariant " : "",
+         } else if (ctx->outputs[i].invariant || ctx->outputs[i].precise) {
+            snprintf(buf, 255, "%s%s;\n",
+               ctx->outputs[i].precise ? "precise " :
+               (ctx->outputs[i].invariant ? "invariant " : ""),
                ctx->outputs[i].glsl_name);
             STRCAT_WITH_RET(glsl_hdr, buf);
          }