diff --git a/src/Makefile.am b/src/Makefile.am
index b49c009..9c3316b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -12,7 +12,7 @@ INCLUDES = \
 
 lib_LTLIBRARIES = libgoocanvas.la
 
-libgoocanvas_la_LIBADD = @PACKAGE_LIBS@ $(INTLLIBS)
+libgoocanvas_la_LIBADD = @PACKAGE_LIBS@ $(INTLLIBS) -lm
 
 if PLATFORM_WIN32
 no_undefined = -no-undefined
diff --git a/src/Makefile.in b/src/Makefile.in
index c4d43b2..8d555fe 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -254,7 +254,7 @@ INCLUDES = \
 #	-DGDK_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED \
 #	-DGTK_DISABLE_DEPRECATED
 lib_LTLIBRARIES = libgoocanvas.la
-libgoocanvas_la_LIBADD = @PACKAGE_LIBS@ $(INTLLIBS)
+libgoocanvas_la_LIBADD = @PACKAGE_LIBS@ $(INTLLIBS) -lm
 @PLATFORM_WIN32_TRUE@no_undefined = -no-undefined
 libtool_opts = \
   -version-info $(LT_VERSION_INFO)	\