diff --git a/src/util.cpp b/src/util.cpp
index 3eb2619e..c72b84bf 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1119,7 +1119,11 @@ void FileCommit(FILE *fileout)
 #ifdef WIN32
     _commit(_fileno(fileout));
 #else
+    #if defined(__linux__) || defined(__NetBSD__)
+    fdatasync(fileno(fileout));
+    #else
     fsync(fileno(fileout));
+    #endif
 #endif
 }