diff --git a/src/main.c b/src/main.c
index 3d0ed09..a8acc81 100644
--- a/src/main.c
+++ b/src/main.c
@@ -70,13 +70,13 @@ inline price_t price_to_wattspersecond(const price_t price) {
 }
 
 inline void print_version() {
-    puts("kwh-cost Ver. " VERSION "\n"
-         "Copyright (C) 2021,2022 Alexander \"Arav\" Andreev <me@arav.top>. All rights reserved.\n"
-         "You can see a license for this program in /usr/share/licenses/kwh-cost/LICENSE.");
+    fputs("kwh-cost Ver. " VERSION "\n"
+         "Copyright (C) 2021-2023 Alexander \"Arav\" Andreev <me@arav.su>. All rights reserved.\n"
+         "You can see a license for this program in /usr/share/licenses/kwh-cost/LICENSE.\n", stderr);
 }
 
 inline void print_usage() {
-    puts("Usage: kwh-cost [OPTIONS] price wattage interval [interval ...]\n"
+    fputs("Usage: kwh-cost [OPTIONS] price wattage interval [interval ...]\n"
          "Options:\n"
          "  --help, -h     display this usage information.\n"
          "  --version, -v  display program version.\n"
@@ -87,5 +87,5 @@ inline void print_usage() {
          "            this much power to be constantly used.\n"
          "            You may specify other time units such as:\n"
          "            m'inute, h'our, d'ay. Example: 5d 3h.\n"
-         "            All given intervals will be summed up.");
+         "            All given intervals will be summed up.\n", stderr);
 }