diff --git a/Makefile b/Makefile
index bff4041..70fa498 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ DSO		=	cc
 DSOFLAGS	=	
 DSONAME		=
 LDFLAGS		=
-LIBS		=	-lz
+LIBS		=	-lm -lz
 RANLIB		=	ranlib
 VERSION		=	0.1
 prefix		=	/usr/local