diff --git a/src/no_asm.h b/src/no_asm.h
index 9d07a081..6f7552c6 100644
--- a/src/no_asm.h
+++ b/src/no_asm.h
@@ -8,8 +8,7 @@
 typedef unsigned long long llimb_t;
 #endif
 
-#if !defined(__STDC_VERSION__) || __STDC_VERSION__<199901 || defined(__STDC_NO_
-VLA__)
+#if !defined(__STDC_VERSION__) || __STDC_VERSION__<199901 || defined(__STDC_NO_VLA__)
 # error "unsupported compiler"
 #endif