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-rw-r--r--crypto/evp/encode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/evp/encode.c b/crypto/evp/encode.c
index e026a8f0ca..d140da67cc 100644
--- a/crypto/evp/encode.c
+++ b/crypto/evp/encode.c
@@ -55,7 +55,7 @@ abcdefghijklmnopqrstuvwxyz0123456789+/";
#define B64_WS 0xE0
#define B64_ERROR 0xFF
#define B64_NOT_BASE64(a) (((a)|0x13) == 0xF3)
-#define B64_BASE64(a) !B64_NOT_BASE64(a)
+#define B64_BASE64(a) (!B64_NOT_BASE64(a))
static const unsigned char data_ascii2bin[128] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,