diff --git a/AK/NumberFormat.h b/AK/NumberFormat.h
index 2b69c168581..7a2d1a681a7 100644
--- a/AK/NumberFormat.h
+++ b/AK/NumberFormat.h
@@ -38,7 +38,7 @@ static String number_string_with_one_decimal(float number, const char* suffix)
     return String::format("%d.%d %s", (int)number, (int)(decimals * 10), suffix);
 }
 
-static String human_readable_size(size_t size)
+static inline String human_readable_size(size_t size)
 {
     if (size < 1 * KiB)
         return String::format("%zu B", size);
@@ -51,4 +51,4 @@ static String human_readable_size(size_t size)
 
 }
 
-using namespace AK;
+using AK::human_readable_size;
diff --git a/Libraries/LibTLS/TLSv12.cpp b/Libraries/LibTLS/TLSv12.cpp
index 7d219bca6ad..7924762b991 100644
--- a/Libraries/LibTLS/TLSv12.cpp
+++ b/Libraries/LibTLS/TLSv12.cpp
@@ -727,7 +727,7 @@ bool TLSv12::add_client_key(const ByteBuffer& certificate_pem_buffer, const Byte
     if (certificate_pem_buffer.is_empty() || rsa_key.is_empty()) {
         return true;
     }
-    auto decoded_certificate = decode_pem(certificate_pem_buffer, 0);
+    auto decoded_certificate = Crypto::decode_pem(certificate_pem_buffer, 0);
     if (decoded_certificate.is_empty()) {
         dbg() << "Certificate not PEM";
         return false;
diff --git a/Libraries/LibTLS/TLSv12.h b/Libraries/LibTLS/TLSv12.h
index 5a082376370..9b358758b18 100644
--- a/Libraries/LibTLS/TLSv12.h
+++ b/Libraries/LibTLS/TLSv12.h
@@ -515,5 +515,4 @@ static constexpr const u8 RSA_SIGN_SHA512_OID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7
 
 }
 
-using namespace Crypto;
 }