diff --git a/nuttx/arch/arm/include/stm32/chip.h b/nuttx/arch/arm/include/stm32/chip.h
index d01929e1ca..2a05f92d75 100644
--- a/nuttx/arch/arm/include/stm32/chip.h
+++ b/nuttx/arch/arm/include/stm32/chip.h
@@ -73,7 +73,7 @@
 #  define STM32_NATIM                    1   /* One advanced timer TIM1 */
 #  define STM32_NGTIM                    3   /* 16-bit general timers TIM2,3,4 with DMA */
 #  define STM32_NBTIM                    0   /* No basic timers */
-#  define STM32_NDMA                     2   /* DMA1-2 */
+#  define STM32_NDMA                     1   /* DMA1 only */
 #  define STM32_NSPI                     2   /* SPI1-2 */
 #  define STM32_NI2S                     0   /* No I2S (?) */
 #  define STM32_NUSART                   3   /* USART1-3 */