diff --git a/logcat_entry.cpp b/logcat_entry.cpp
index 0d88c0d..119967b 100644
--- a/logcat_entry.cpp
+++ b/logcat_entry.cpp
@@ -102,10 +102,6 @@ std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buff
     return std::move(logcat_entry);
 }
 
-static bool substr_equal(const char* lhs_str, size_t lhs_length, const char* rhs_str) {
-    return lhs_length == strlen(rhs_str) && memcmp(lhs_str, rhs_str, lhs_length * sizeof(char)) == 0;
-}
-
 std::optional<Buffer> try_parse_buffer(char* buf, size_t length) {
     regmatch_t matches[2];
     matches[0].rm_so = 0;
@@ -119,11 +115,10 @@ std::optional<Buffer> try_parse_buffer(char* buf, size_t length) {
     }
 
     const char* buffer_str = &buf[matches[1].rm_so];
-    size_t buffer_length = static_cast<size_t>(matches[1].rm_eo - matches[1].rm_so);
-    if (substr_equal(buffer_str, buffer_length, "main")) return Buffer::Main;
-    if (substr_equal(buffer_str, buffer_length, "system")) return Buffer::System;
-    if (substr_equal(buffer_str, buffer_length, "radio")) return Buffer::Radio;
-    if (substr_equal(buffer_str, buffer_length, "events")) return Buffer::Events;
-    if (substr_equal(buffer_str, buffer_length, "crash")) return Buffer::Crash;
+    if (!strncmp(buffer_str, "main", 4)) return Buffer::Main;
+    if (!strncmp(buffer_str, "system", 6)) return Buffer::System;
+    if (!strncmp(buffer_str, "radio", 5)) return Buffer::Radio;
+    if (!strncmp(buffer_str, "events", 6)) return Buffer::Events;
+    if (!strncmp(buffer_str, "crash", 5)) return Buffer::Crash;
     return Buffer::Unknown;
 }