diff --git a/src/distributed_io.c b/src/distributed_io.c
index 9f08ca929bc06dc0bc06944b8d7ec96eb703d9de..000033b91ab962b421608fa9ecb4b6bbf0f82764 100644
--- a/src/distributed_io.c
+++ b/src/distributed_io.c
@@ -358,7 +358,8 @@ void write_output_distributed(struct engine* e,
 
   /* Determine if we are writing a reduced snapshot, and if so which
    * output selection type to use */
-  char current_selection_name[FIELD_BUFFER_SIZE] = "Default";
+  char current_selection_name[FIELD_BUFFER_SIZE] =
+      select_output_header_default_name;
   if (output_list) {
     /* Users could have specified a different Select Output scheme for each
      * snapshot. */
diff --git a/src/output_list.c b/src/output_list.c
index 4bc43f5ea49cc8ce88da5cb8224fa22d222c2c44..b1a01aa218aa3cfa13dfcc1ade6af637bc2d720a 100644
--- a/src/output_list.c
+++ b/src/output_list.c
@@ -111,7 +111,8 @@ void output_list_read_file(struct output_list *output_list,
   size_t ind = 0;
   int read_successfully = 0;
   int found_select_output = 0;
-  char select_output_buffer[FIELD_BUFFER_SIZE] = "Default";
+  char select_output_buffer[FIELD_BUFFER_SIZE] =
+      select_output_header_default_name;
   while (getline(&line, &len, file) != -1) {
     double *time = &output_list->times[ind];
     /* Write data to output_list */
diff --git a/src/output_options.h b/src/output_options.h
index 065b5a91ae95a63b659642a1c9e41036dc462cd9..99176e63755771af060a71d71c33def32549b6d7 100644
--- a/src/output_options.h
+++ b/src/output_options.h
@@ -36,6 +36,9 @@ enum compression_levels {
 /* Default value for SelectOutput */
 #define compression_level_default compression_write_lossless
 
+/* Default name for the SelectOutput header */
+#define select_output_header_default_name "Default"
+
 /**
  * @brief Names of the compression levels, used in the select_output.yml
  *        parameter file.
diff --git a/src/parallel_io.c b/src/parallel_io.c
index f697623f1320c316c8484d548645f9e901b65dca..37999d01eb6a24bc3e1f5c3a5010c19dbde93110 100644
--- a/src/parallel_io.c
+++ b/src/parallel_io.c
@@ -1105,7 +1105,8 @@ void prepare_file(struct engine* e, const char* fileName,
 
   /* Determine if we are writing a reduced snapshot, and if so which
    * output selection type to use */
-  char current_selection_name[FIELD_BUFFER_SIZE] = "Default";
+  char current_selection_name[FIELD_BUFFER_SIZE] =
+      select_output_header_default_name;
   if (output_list) {
     /* Users could have specified a different Select Output scheme for each
      * snapshot. */
@@ -1781,7 +1782,8 @@ void write_output_parallel(struct engine* e,
     }
 
     /* Write everything that is not cancelled */
-    char current_selection_name[FIELD_BUFFER_SIZE] = "Default";
+    char current_selection_name[FIELD_BUFFER_SIZE] =
+        select_output_header_default_name;
     if (output_list) {
       /* Users could have specified a different Select Output scheme for each
        * snapshot. */
diff --git a/src/serial_io.c b/src/serial_io.c
index da84d0b90d93d01b63c349b95dd061ece7d83e19..43de9c19a8b1832550d036b044d30030ef67660a 100644
--- a/src/serial_io.c
+++ b/src/serial_io.c
@@ -925,7 +925,8 @@ void write_output_serial(struct engine* e,
   /* Determine if we are writing a reduced snapshot, and if so which
    * output selection type to use. Can just create a copy of this on
    * each rank. */
-  char current_selection_name[FIELD_BUFFER_SIZE] = "Default";
+  char current_selection_name[FIELD_BUFFER_SIZE] =
+      select_output_header_default_name;
   if (output_list) {
     /* Users could have specified a different Select Output scheme for each
      * snapshot. */
diff --git a/src/single_io.c b/src/single_io.c
index 1d104f0aec2942b227fda042bb7e04a3e6ec26e0..0f22ddeb2aca5b3e063133191d2499fb5e5505bd 100644
--- a/src/single_io.c
+++ b/src/single_io.c
@@ -817,7 +817,8 @@ void write_output_single(struct engine* e,
 
   /* Determine if we are writing a reduced snapshot, and if so which
    * output selection type to use */
-  char current_selection_name[FIELD_BUFFER_SIZE] = "Default";
+  char current_selection_name[FIELD_BUFFER_SIZE] =
+      select_output_header_default_name;
   if (output_list) {
     /* Users could have specified a different Select Output scheme for each
      * snapshot. */