diff --git a/src/rendermode-normal.c b/src/rendermode-normal.c
index b112192..c6a7ab9 100644
--- a/src/rendermode-normal.c
+++ b/src/rendermode-normal.c
@@ -126,6 +126,7 @@ static void
 rendermode_normal_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
     RenderModeNormal *self = (RenderModeNormal *)data;
     int randx = 0,randy = 0;
+    unsigned char data;
     
     /* first, check to see if we should use biome-compatible src, mask */
     if (self->biome_data) {
@@ -137,7 +138,7 @@ rendermode_normal_draw(void *data, RenderState *state, PyObject *src, PyObject *
             randy = rand() % 6 + 1 - 3;
             state->imgx = state->imgx + randx;
             state->imgy = state->imgy + randy;
-            unsigned char data = getArrayByte3D(state->blockdata_expanded, state->x, state->y, state->z);
+            data = getArrayByte3D(state->blockdata_expanded, state->x, state->y, state->z);
             if (data == 1) {
                 src = mask = self->tall_grass_texture;
             } else if (data == 2) {