diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index 518435c..637e34b 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -37,6 +37,7 @@
 #include "intel_chipset.h"
 #include "intel_reg.h"
 #include <i915_drm.h>
+#include <errno.h>
 
 void
 intel_batchbuffer_reset(struct intel_batchbuffer *batch)
@@ -107,7 +108,10 @@ intel_batchbuffer_flush_on_ring(struct intel_batchbuffer *batch, int ring)
 	batch->ptr = NULL;
 
 	ret = drm_intel_bo_mrb_exec(batch->bo, used, NULL, 0, 0, ring);
-	assert(ret == 0);
+	if (ret != 0) {
+		fprintf(stderr, "exec_batch failed with %i, %s\n", ret, strerror(-ret));
+		assert(0);
+	}
 
 	intel_batchbuffer_reset(batch);
 }