diff --git a/sinqEPICSApp/src/devScalerEL737.c b/sinqEPICSApp/src/devScalerEL737.c
index 8471bdb..ca78a58 100644
--- a/sinqEPICSApp/src/devScalerEL737.c
+++ b/sinqEPICSApp/src/devScalerEL737.c
@@ -57,7 +57,7 @@
 /* dset functions */
 static long el737_init_record(struct scalerRecord *psr, CALLBACK *pcallback);
 static long el737_reset(scalerRecord *psr);
-static long el737_read(scalerRecord *psr, unsigned long *val);
+static long el737_read(scalerRecord *psr, epicsUInt32 *val);
 static long el737_write_preset(scalerRecord *psr, int signal, unsigned long val);
 static long el737_arm(scalerRecord *psr, int val);
 static long el737_done(scalerRecord *psr);
@@ -238,14 +238,14 @@ static long el737_reset(scalerRecord *psr)
   return 0;
 }
 
-static long el737_read(scalerRecord *psr, unsigned long *val)
+static long el737_read(scalerRecord *psr, epicsUInt32 *val)
 {
   unsigned int i;
   EL737priv *priv;
 
   priv = (EL737priv *)psr->dpvt;
   for(i = 0; i < NCOUNT; i++){
-   val[i] =  priv->values[i];
+    val[i] =  (epicsUInt32)priv->values[i];
   }
 
   return 0;