diff --git a/src/modules/commander/PreflightCheck.cpp b/src/modules/commander/PreflightCheck.cpp
index 01b5c5cb20..72b769c9f4 100644
--- a/src/modules/commander/PreflightCheck.cpp
+++ b/src/modules/commander/PreflightCheck.cpp
@@ -103,7 +103,7 @@ static int check_calibration(DevHandle &h, const char *param_template, int &devi
 		}
 
 		/* if param get succeeds */
-		int calibration_devid;
+		int32_t calibration_devid;
 
 		if (!param_get(parm, &(calibration_devid))) {