diff --git a/arch/arm/src/lm3s/lm3s_gpio.c b/arch/arm/src/lm3s/lm3s_gpio.c
index 1c792e888bb..305103143a5 100644
--- a/arch/arm/src/lm3s/lm3s_gpio.c
+++ b/arch/arm/src/lm3s/lm3s_gpio.c
@@ -727,7 +727,7 @@ int lm3s_configgpio(uint32_t cfgset)
   putreg32(regval, LM3S_SYSCON_RCGC2);
 
   /* First, set the port to digital input.  This is the safest state in which
-   * to perform reconfiguation.
+   * to perform reconfiguration.
    */
 
   lm3s_gpiofunc(base, pinno, &g_funcbits[0]);