diff --git a/src/vrend_shader.c b/src/vrend_shader.c
index a588a29..0389f3f 100644
--- a/src/vrend_shader.c
+++ b/src/vrend_shader.c
@@ -2258,6 +2258,7 @@ static boolean fill_interpolants(struct dump_ctx *ctx, struct vrend_shader_info
    if (ctx->prog_type == TGSI_PROCESSOR_VERTEX || ctx->prog_type == TGSI_PROCESSOR_GEOMETRY)
       return TRUE;
 
+   free(sinfo->interpinfo);
    sinfo->interpinfo = calloc(ctx->num_interps, sizeof(struct vrend_interp_info));
    if (!sinfo->interpinfo)
       return FALSE;