diff --git a/Makefile b/Makefile
index 180a3d7..7a8ad7e 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,7 @@ endif
 
 ifdef CONFIG_LINUX
 LOADABLE_EXTENSION=so
+CFLAGS += -lm
 endif
 
 ifdef CONFIG_WINDOWS