diff --git a/CMakeLists.txt b/CMakeLists.txt
index e330429..6202e00 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ project(zero-epwing)
 include_directories(eb)
 link_directories(eb/eb/.libs jansson/lib)
 add_executable(zero-epwing main.c book.c convert.c hooks.c)
-target_link_libraries(zero-epwing libm.a libeb.a libm.a libz.a libjansson.a)
+target_link_libraries(zero-epwing libeb.a libz.a libjansson.a)
 if (WIN32 OR APPLE)
     target_link_libraries(zero-epwing libiconv.a)
 endif (WIN32 OR APPLE)
diff --git a/book.c b/book.c
index 9fc559a..239fd06 100644
--- a/book.c
+++ b/book.c
@@ -101,7 +101,7 @@ static char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* po
         return NULL;
     }
 
-    char data[10240] = {};
+    static char data[1024000] = {};
     ssize_t data_length = 0;
     EB_Error_Code error;