Index: uspace/lib/libc/include/assert.h
===================================================================
--- uspace/lib/libc/include/assert.h	(revision 08232eec7477aa13695d471714768b19b5d6d270)
+++ uspace/lib/libc/include/assert.h	(revision d9ee2ea421f92b32ff42c28dec0954ca4de779ee)
@@ -51,5 +51,12 @@
 
 #ifndef NDEBUG
-#	define assert(expr) if (!(expr)) { printf("Assertion failed (%s) at file '%s', line %d.\n", #expr, __FILE__, __LINE__); abort();}
+#	define assert(expr) \
+		do { \
+			if (!(expr)) { \
+				printf("Assertion failed (%s) at file '%s', " \
+				    "line %d.\n", #expr, __FILE__, __LINE__); \
+				abort(); \
+			} \
+		} while (0)
 #else
 #	define assert(expr)