diff --git a/arch/arm/src/stm32l4/stm32l4_qspi.c b/arch/arm/src/stm32l4/stm32l4_qspi.c
index be8cfd1a77a..e5b4f21a80f 100644
--- a/arch/arm/src/stm32l4/stm32l4_qspi.c
+++ b/arch/arm/src/stm32l4/stm32l4_qspi.c
@@ -40,6 +40,7 @@
 #include <nuttx/config.h>
 
 #include <sys/types.h>
+#include <inttypes.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdlib.h>
@@ -1754,7 +1755,7 @@ static uint32_t qspi_setfrequency(struct qspi_dev_s *dev, uint32_t frequency)
       return 0;
     }
 
-  spiinfo("frequency=%d\n", frequency);
+  spiinfo("frequency=%" PRId32 "\n", frequency);
   DEBUGASSERT(priv);
 
   /* Wait till BUSY flag reset */
@@ -1808,14 +1809,14 @@ static uint32_t qspi_setfrequency(struct qspi_dev_s *dev, uint32_t frequency)
   /* Calculate the new actual frequency */
 
   actual = STL32L4_QSPI_CLOCK / prescaler;
-  spiinfo("prescaler=%d actual=%d\n", prescaler, actual);
+  spiinfo("prescaler=%" PRId32 " actual=%" PRId32 "\n", prescaler, actual);
 
   /* Save the frequency setting */
 
   priv->frequency = frequency;
   priv->actual    = actual;
 
-  spiinfo("Frequency %d->%d\n", frequency, actual);
+  spiinfo("Frequency %" PRId32 "->%" PRId32 "\n", frequency, actual);
   return actual;
 }
 
@@ -1886,7 +1887,7 @@ static void qspi_setmode(struct qspi_dev_s *dev, enum qspi_mode_e mode)
         }
 
       qspi_putreg(priv, regval, STM32L4_QUADSPI_DCR);
-      spiinfo("DCR=%08x\n", regval);
+      spiinfo("DCR=%08" PRIx32 "\n", regval);
 
       /* Save the mode so that subsequent re-configurations will be faster */