diff --git a/port/linux/config/pika_config_default.h b/port/linux/config/pika_config_default.h
index 05dcdcfa0..996aca02c 100644
--- a/port/linux/config/pika_config_default.h
+++ b/port/linux/config/pika_config_default.h
@@ -1,4 +1,5 @@
 #define PIKA_STACK_BUFF_SIZE 1024 * 4
 #define PIKA_ASSERT_ENABLE 1
 #define PIKA_MATH_ENABLE 1
-#define PIKA_ARG_CACHE_ENABLE 1
\ No newline at end of file
+#define PIKA_ARG_CACHE_ENABLE 1
+#define PIKA_READ_FILE_BUFF_SIZE 1024 * 40
\ No newline at end of file
diff --git a/port/linux/config/pika_config_float.h b/port/linux/config/pika_config_float.h
index 6437efe88..7d0e55234 100644
--- a/port/linux/config/pika_config_float.h
+++ b/port/linux/config/pika_config_float.h
@@ -1,4 +1,5 @@
 #define PIKA_STACK_BUFF_SIZE 1024 * 4
 #define PIKA_ASSERT_ENABLE 1
 #define PIKA_MATH_ENABLE 1
-#define PIKA_FLOAT_TYPE_DOUBLE 0
\ No newline at end of file
+#define PIKA_FLOAT_TYPE_DOUBLE 0
+#define PIKA_READ_FILE_BUFF_SIZE 1024 * 40
\ No newline at end of file
diff --git a/port/linux/config/pika_config_optimize_speed.h b/port/linux/config/pika_config_optimize_speed.h
index 5c25530d6..f7219f3b7 100644
--- a/port/linux/config/pika_config_optimize_speed.h
+++ b/port/linux/config/pika_config_optimize_speed.h
@@ -1,3 +1,4 @@
 #define PIKA_OPTIMIZE PIKA_OPTIMIZE_SPEED
 #define PIKA_STACK_BUFF_SIZE 1024 * 4
-#define PIKA_ASSERT_ENABLE 1
\ No newline at end of file
+#define PIKA_ASSERT_ENABLE 1
+#define PIKA_READ_FILE_BUFF_SIZE 1024 * 40
\ No newline at end of file
diff --git a/port/linux/config/pika_config_pool.h b/port/linux/config/pika_config_pool.h
index 50186de18..fbad9d21f 100644
--- a/port/linux/config/pika_config_pool.h
+++ b/port/linux/config/pika_config_pool.h
@@ -1,4 +1,5 @@
 #define PIKA_STACK_BUFF_SIZE 1024 * 4
 #define PIKA_POOL_ENABLE 1
 #define PIKA_POOL_SIZE 1024 * 1024 * 10
-#define PIKA_ASSERT_ENABLE 1
\ No newline at end of file
+#define PIKA_ASSERT_ENABLE 1
+#define PIKA_READ_FILE_BUFF_SIZE 1024 * 40
\ No newline at end of file
diff --git a/port/linux/config/pika_config_syntax_level_minimal.h b/port/linux/config/pika_config_syntax_level_minimal.h
index ae309c5fc..458d634ef 100644
--- a/port/linux/config/pika_config_syntax_level_minimal.h
+++ b/port/linux/config/pika_config_syntax_level_minimal.h
@@ -1,3 +1,4 @@
 #define PIKA_NANO_ENABLE 1
 #define PIKA_STACK_BUFF_SIZE 1024 * 4
-#define PIKA_ASSERT_ENABLE 1
\ No newline at end of file
+#define PIKA_ASSERT_ENABLE 1
+#define PIKA_READ_FILE_BUFF_SIZE 1024 * 40
\ No newline at end of file