diff --git a/library/aesce.h b/library/aesce.h
index 1e72e5b..da42446 100644
--- a/library/aesce.h
+++ b/library/aesce.h
@@ -31,7 +31,7 @@
 #include "mbedtls/aes.h"
 
 
-#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) &&  \
+#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && \
     defined(__aarch64__) && !defined(MBEDTLS_HAVE_ARM64)
 #define MBEDTLS_HAVE_ARM64
 #endif