diff --git a/src/plugins_types/bits.c b/src/plugins_types/bits.c
index ddfad8c..88fd218 100644
--- a/src/plugins_types/bits.c
+++ b/src/plugins_types/bits.c
@@ -228,7 +228,7 @@
     bit_pos = 0;
     for (i = 0; i < bitmap_size; ++i) {
         /* check this byte (but not necessarily all bits in the last byte) */
-        byte = BITS_BITMAP_BYTE(bitmap, bitmap_size, i);
+        byte = (uint8_t *)BITS_BITMAP_BYTE(bitmap, bitmap_size, i);
         for (bitmask = 1; bitmask; bitmask <<= 1) {
             if (*byte & bitmask) {
                 /* add this bit */