diff --git a/Makefile b/Makefile
index 84097ae..266e3ec 100644
--- a/Makefile
+++ b/Makefile
@@ -37,6 +37,9 @@ LIBICMP_SRCS = $(shell find $(LIBICMP_DIR)/src -type f -name '*.c' 2>/dev/null)
 LIBICMP_HEADERS = $(wildcard $(LIBICMP_DIR)/includes/*.h)
 endif
 
+# Extra link flags
+LDFLAGS += -lm
+
 # Build Directories
 OBJ_DIR = build
 OBJS = $(SRCS:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)
diff --git a/libicmp b/libicmp
index 69a6a63..f85b342 160000
--- a/libicmp
+++ b/libicmp
@@ -1 +1 @@
-Subproject commit 69a6a633d4f98d9a15c323d43edcd2395c14d141
+Subproject commit f85b342f8c87eb576dcff8eaa65bb4a2c90551b7