diff --git a/tools/Makefile.am b/tools/Makefile.am
index 1f782403..485a94e6 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -27,6 +27,6 @@ hidpp20_dump_page_LDADD = ../src/libhidpp.la
 hidpp20_dump_page_LDFLAGS = -no-install
 hidpp20_dump_page_CFLAGS = -I$(top_srcdir)/src
 
-lur_command_SOURCeS = lur-command.c
+lur_command_SOURCES = lur-command.c
 lur_command_LDADD = ../src/liblur.la
 lur_command_CFLAGS = -I$(top_srcdir)/src