--- lolcat-1.1/Makefile.orig	2020-12-27 17:46:55.253499951 +0100
+++ lolcat-1.1/Makefile	2020-12-27 17:56:26.017056160 +0100
@@ -14,7 +14,7 @@
 .PHONY: install clean debug
 
 lolcat: $(LOLCAT_SRC)
-	$(CC) $(CFLAGS) -o $@ $^
+	$(CC) $(CFLAGS) -lm -o $@ $^
 
 censor: $(CENSOR_SRC)
 	$(CC) $(CFLAGS) -o $@ $^