Update README.md and usage

1 files changed, 1 insertions, 1 deletions

diff --git a/src/spm.c b/src/spm.c
index 99c27c3..e2e7a8f 100644
--- a/src/spm.c
+++ b/src/spm.c
@@ -12,7 +12,7 @@ int RUNTIME_LIST = 0;
 int RUNTIME_SEARCH = 0;
 
 void usage(const char *program_name) {
-    printf("usage: %s [-hVvBIrmMLS]\n"
+    printf("usage: %s [-hVvBIRrmMLS]\n"
            "  -h,  --help                show this help message\n"
            "  -V,  --version             show version\n"
            "  -v,  --verbose             show more information (additive)\n"