diff --git a/bmlutils/bmlutils.c b/bmlutils/bmlutils.c
index 4c7c49d0..7875f6fa 100644
--- a/bmlutils/bmlutils.c
+++ b/bmlutils/bmlutils.c
@@ -134,7 +134,7 @@ int cmd_bml_backup_raw_partition(const char *partition, const char *out_file)
         }
     }
 
-    fsync(out);
+    fsync(fileno(out));
     ret = 0;
 ERROR1:
     fclose ( out );
diff --git a/mmcutils/mmcutils.c b/mmcutils/mmcutils.c
index f9c7b702..6d976b5a 100644
--- a/mmcutils/mmcutils.c
+++ b/mmcutils/mmcutils.c
@@ -458,7 +458,7 @@ mmc_raw_copy (const MmcPartition *partition, char *in_file) {
         }
     }
 
-    fsync(out);
+    fsync(fileno(out));
     ret = 0;
 ERROR1:
     fclose ( out );
@@ -509,7 +509,7 @@ mmc_raw_dump_internal (const char* in_file, const char *out_file) {
         }
     }
 
-    fsync(out);
+    fsync(fileno(out));
     ret = 0;
 ERROR1:
     fclose ( out );