diff --git a/cpu/cc2538/spi-arch.h b/cpu/cc2538/spi-arch.h
index 46d8d3bf4..ddbf9daac 100644
--- a/cpu/cc2538/spi-arch.h
+++ b/cpu/cc2538/spi-arch.h
@@ -60,7 +60,6 @@
 #error "You must include spi-arch.h before spi.h for the CC2538."
 #endif
 #define SPI_FLUSH() do { \
-  SPI_WAITFOREORx(); \
   while (REG(SSI0_BASE + SSI_SR) & SSI_SR_RNE) { \
     SPI_RXBUF; \
   } \