diff --git a/src/app-utils/file-utils.c b/src/app-utils/file-utils.c
index 791b8853e2..43463ab37c 100644
--- a/src/app-utils/file-utils.c
+++ b/src/app-utils/file-utils.c
@@ -91,7 +91,7 @@ gncReadFile (const char * file, char ** data)
   if (!filename) return 0;
 
   /* Open file: */
-  fd = g_open( filename, O_RDONLY );
+  fd = g_open( filename, O_RDONLY, 0 );
 
   g_free(filename); filename = NULL;
 
diff --git a/src/backend/file/gnc-backend-file.c b/src/backend/file/gnc-backend-file.c
index c272aa86e7..fbd6f1ed3e 100644
--- a/src/backend/file/gnc-backend-file.c
+++ b/src/backend/file/gnc-backend-file.c
@@ -342,7 +342,7 @@ copy_file(const char *orig, const char *bkup)
     ssize_t count_write;
     ssize_t count_read;
 
-    orig_fd = g_open(orig, O_RDONLY);
+    orig_fd = g_open(orig, O_RDONLY, 0);
     if(orig_fd == -1)
     {
         return FALSE;
diff --git a/src/backend/file/io-gncxml-v2.c b/src/backend/file/io-gncxml-v2.c
index a007c7f3ba..dddde1e3d6 100644
--- a/src/backend/file/io-gncxml-v2.c
+++ b/src/backend/file/io-gncxml-v2.c
@@ -1428,7 +1428,7 @@ static gboolean
 is_gzipped_file(const gchar *name)
 {
     unsigned char buf[2];
-    int fd = g_open(name, O_RDONLY);
+    int fd = g_open(name, O_RDONLY, 0);
 
     if (fd == -1) {
         return FALSE;
diff --git a/src/backend/file/test/test-file-stuff.c b/src/backend/file/test/test-file-stuff.c
index 6d6f1e33f2..392f98b233 100644
--- a/src/backend/file/test/test-file-stuff.c
+++ b/src/backend/file/test/test-file-stuff.c
@@ -58,8 +58,8 @@ files_compare(const gchar* f1, const gchar* f2)
     int fd1, fd2;
     int amount_read1, amount_read2;
 
-    fd1 = g_open(f1, O_RDONLY);
-    fd2 = g_open(f2, O_RDONLY);
+    fd1 = g_open(f1, O_RDONLY, 0);
+    fd2 = g_open(f2, O_RDONLY, 0);
 
     do
     {
diff --git a/src/import-export/hbci/druid-hbci-initial.c b/src/import-export/hbci/druid-hbci-initial.c
index 7cb34d611d..1fe9231173 100644
--- a/src/import-export/hbci/druid-hbci-initial.c
+++ b/src/import-export/hbci/druid-hbci-initial.c
@@ -533,7 +533,7 @@ on_aqhbci_button (GtkButton *button,
 
   if (wizard_exists) {
     /* Really check whether the file exists */
-    int fd = g_open( wizard_path, O_RDONLY );
+    int fd = g_open( wizard_path, O_RDONLY, 0 );
     if ( fd == -1)
       wizard_exists = FALSE;
     else
diff --git a/src/import-export/hbci/gnc-file-aqb-import.c b/src/import-export/hbci/gnc-file-aqb-import.c
index 1051420fec..fc0552cb94 100644
--- a/src/import-export/hbci/gnc-file-aqb-import.c
+++ b/src/import-export/hbci/gnc-file-aqb-import.c
@@ -169,7 +169,7 @@ void gnc_file_aqbanking_import (const gchar *aqbanking_importername,
     DEBUG("Filename found: %s",selected_filename);
 
     DEBUG("Opening selected file");
-    dtaus_fd = g_open(selected_filename, O_RDONLY);
+    dtaus_fd = g_open(selected_filename, O_RDONLY, 0);
     if (dtaus_fd == -1) {
       DEBUG("Could not open file %s", selected_filename);
       return;