diff --git a/examples/eval-callback/eval-callback.cpp b/examples/eval-callback/eval-callback.cpp
index 29b5f3b3c12c8..e670d3769c7e8 100644
--- a/examples/eval-callback/eval-callback.cpp
+++ b/examples/eval-callback/eval-callback.cpp
@@ -52,15 +52,15 @@ static void ggml_print_tensor(uint8_t * data, ggml_type type, const int64_t * ne
                     size_t i = i3 * nb[3] + i2 * nb[2] + i1 * nb[1] + i0 * nb[0];
                     float v;
                     if (type == GGML_TYPE_F16) {
-                        v = ggml_fp16_to_fp32(*(ggml_fp16_t *) data + i);
+                        v = ggml_fp16_to_fp32(*(ggml_fp16_t *) &data[i]);
                     } else if (type == GGML_TYPE_F32) {
-                        v = *(float *) data + i;
+                        v = *(float *) &data[i];
                     } else if (type == GGML_TYPE_I32) {
-                        v = (float) *(int32_t *) data + i;
+                        v = (float) *(int32_t *) &data[i];
                     } else if (type == GGML_TYPE_I16) {
-                        v = (float) *(int16_t *) data + i;
+                        v = (float) *(int16_t *) &data[i];
                     } else if (type == GGML_TYPE_I8) {
-                        v = (float) *(int8_t *) data + i;
+                        v = (float) *(int8_t *) &data[i];
                     } else {
                         GGML_ASSERT(false);
                     }