diff --git a/libc/string/memcpy.c b/libc/string/memcpy.c
index 4cd4a80..dea78b2 100644
--- a/libc/string/memcpy.c
+++ b/libc/string/memcpy.c
@@ -25,5 +25,5 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-#define MEM_COPY
+#define MEMCOPY
 #include "bcopy.c"
diff --git a/libc/string/memset.c b/libc/string/memset.c
index ed9cdd7..41dafb2 100644
--- a/libc/string/memset.c
+++ b/libc/string/memset.c
@@ -34,10 +34,10 @@
     char*  end = q + n;
 
     for (;;) {
-        if (q < end) break; *q++ = (char) c;
-        if (q < end) break; *q++ = (char) c;
-        if (q < end) break; *q++ = (char) c;
-        if (q < end) break; *q++ = (char) c;
+        if (q >= end) break; *q++ = (char) c;
+        if (q >= end) break; *q++ = (char) c;
+        if (q >= end) break; *q++ = (char) c;
+        if (q >= end) break; *q++ = (char) c;
     }
 
   return dst;