diff --git a/modules/fs/fsw/src/cfe_fs_api.c b/modules/fs/fsw/src/cfe_fs_api.c
index 3b5d034b8..81615f45c 100644
--- a/modules/fs/fsw/src/cfe_fs_api.c
+++ b/modules/fs/fsw/src/cfe_fs_api.c
@@ -43,7 +43,6 @@
  * Fixed default file system extensions (not platform dependent)
  */
 const char CFE_FS_DEFAULT_SCRIPT_EXTENSION[]    = ".scr";
-const char CFE_FS_DEFAULT_DUMP_FILE_EXTENSION[] = ".dat";
 const char CFE_FS_DEFAULT_TEMP_FILE_EXTENSION[] = ".tmp";
 const char CFE_FS_DEFAULT_LOG_FILE_EXTENSION[]  = ".log";
 
@@ -105,9 +104,6 @@ const char *CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_t FileCategory)
         case CFE_FS_FileCategory_TEMP:
             Result = CFE_FS_DEFAULT_TEMP_FILE_EXTENSION;
             break;
-        case CFE_FS_FileCategory_BINARY_DATA_DUMP:
-            Result = CFE_FS_DEFAULT_DUMP_FILE_EXTENSION;
-            break;
         case CFE_FS_FileCategory_TEXT_LOG:
             Result = CFE_FS_DEFAULT_LOG_FILE_EXTENSION;
             break;
diff --git a/modules/fs/ut-coverage/fs_UT.c b/modules/fs/ut-coverage/fs_UT.c
index 19d6f6e19..79affdcf3 100644
--- a/modules/fs/ut-coverage/fs_UT.c
+++ b/modules/fs/ut-coverage/fs_UT.c
@@ -407,7 +407,7 @@ void Test_CFE_FS_DefaultFileStrings(void)
     UtAssert_NULL(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_UNKNOWN));
     UtAssert_ADDRESS_EQ(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_DYNAMIC_MODULE),
                         GLOBAL_CONFIGDATA.Default_ModuleExtension);
-    UtAssert_NOT_NULL(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_BINARY_DATA_DUMP));
+    UtAssert_NULL(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_BINARY_DATA_DUMP));
     UtAssert_NOT_NULL(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_TEXT_LOG));
     UtAssert_NOT_NULL(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_SCRIPT));
     UtAssert_NOT_NULL(CFE_FS_GetDefaultExtension(CFE_FS_FileCategory_TEMP));