diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -359,7 +359,7 @@
 
 sts: sts.o
 	@echo Linking $<...
-	@$(CC) -Wall -O2 -lm -g -ggdb $(LDFLAGS) $< -o $@
+	@$(CC) -Wall -O2 -g -ggdb $(LDFLAGS) $< -o $@
 
 .PHONY: beauty clean uninstall