1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 88116128f8..0c06aa880f 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ CFLAGS = -g
 override CFLAGS += -Wall -Wextra -Wwrite-strings -Wswitch-enum -Wno-unused
 
 glcpp: glcpp.o glcpp-lex.o glcpp-parse.o hash_table.o xtalloc.o
-	gcc -o $@ -ltalloc $^
+	gcc -o $@ -ltalloc -lm $^
 
 %.c %.h: %.y
 	bison --debug --defines=$*.h --output=$*.c $^