diff --git a/src/modules/systemlib/param/param.c b/src/modules/systemlib/param/param.c
index 68721598d9..94935d9c3a 100644
--- a/src/modules/systemlib/param/param.c
+++ b/src/modules/systemlib/param/param.c
@@ -500,7 +500,7 @@ param_reset_excludes(const char* excludes[], int num_excludes)
 
 		for (int index = 0, len = strlen(excludes[index]); index < num_excludes; index ++) {
 			if((excludes[index][len - 1] == '*'
-				&& strncmp(name, excludes[index], strlen(excludes[index]))) == 0
+				&& strncmp(name, excludes[index], len - 1)) == 0
 				|| strcmp(name, excludes[index]) == 0) {
 
 				param_reset(param);