diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index c4b7392..9a01e7d 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -69,7 +69,7 @@
 	unsigned int i;
 	int rc;
 
-	dataptr = fpgadata;
+	dataptr = (unsigned char *)fpgadata;
 
 #if CFG_FPGA_XILINX
 	/* skip the first bytes of the bitsteam, their meaning is unknown */