diff --git a/powerpc_elf.c b/powerpc_elf.c
index 237a30b..f035cd9 100644
--- a/powerpc_elf.c
+++ b/powerpc_elf.c
@@ -11,12 +11,12 @@
 
 #define PHDR_MAX 10
 
-Elf32_Ehdr elfhdr;
-Elf32_Phdr phdrs[PHDR_MAX];
+static Elf32_Ehdr elfhdr;
+static Elf32_Phdr phdrs[PHDR_MAX];
+static FIL fd;
 
 int powerpc_load_file(const char *path)
 {
-	FIL fd;
 	u32 read;
 	FRESULT fres;