diff --git a/armsrc/des.c b/armsrc/des.c
index 1ff041843..6b3bea9b7 100644
--- a/armsrc/des.c
+++ b/armsrc/des.c
@@ -210,7 +210,7 @@ void permute(const uint8_t *ptable, const uint8_t *in, uint8_t *out){
 	for(byte=0; byte<ob; ++byte){
 		uint8_t x,t=0;
 		for(bit=0; bit<8; ++bit){
-			x=*ptable++ -1 ;
+			x = *ptable++ - 1;
 				t<<=1;
 			if((in[x/8]) & (0x80>>(x%8)) ){
 				t|=0x01;