diff --git a/daemon/Daemon.cpp b/daemon/Daemon.cpp
index f7f2ef2f..445c4dfd 100644
--- a/daemon/Daemon.cpp
+++ b/daemon/Daemon.cpp
@@ -94,6 +94,11 @@ namespace util
 
 		i2p::config::GetOption("daemon", isDaemon);
 
+		std::string certsdir; i2p::config::GetOption("certsdir", certsdir);
+		i2p::fs::SetCertsDir(certsdir);
+
+		certsdir = i2p::fs::GetCertsDir();
+
 		std::string logs     = ""; i2p::config::GetOption("log",      logs);
 		std::string logfile  = ""; i2p::config::GetOption("logfile",  logfile);
 		std::string loglevel = ""; i2p::config::GetOption("loglevel", loglevel);
@@ -132,6 +137,7 @@ namespace util
 		LogPrint(eLogNone,  "i2pd v", VERSION, " starting");
 		LogPrint(eLogDebug, "FS: main config file: ", config);
 		LogPrint(eLogDebug, "FS: data directory: ", datadir);
+		LogPrint(eLogDebug, "FS: certificates directory: ", certsdir);
 
 		bool precomputation; i2p::config::GetOption("precomputation.elgamal", precomputation);
 		bool aesni; i2p::config::GetOption("cpuext.aesni", aesni);
diff --git a/libi2pd/FS.cpp b/libi2pd/FS.cpp
index 6ac302b0..f6653e55 100644
--- a/libi2pd/FS.cpp
+++ b/libi2pd/FS.cpp
@@ -24,6 +24,7 @@ namespace i2p {
 namespace fs {
 	std::string appName = "i2pd";
 	std::string dataDir = "";
+	std::string certsDir = "";
 #ifdef _WIN32
 	std::string dirSep = "\\";
 #else
@@ -42,6 +43,10 @@ namespace fs {
 		return dataDir;
 	}
 
+	const std::string & GetCertsDir () {
+		return certsDir;
+	}
+
 	const std::string GetUTF8DataDir () {
 #ifdef _WIN32
 		boost::filesystem::wpath path (dataDir);
@@ -126,6 +131,21 @@ namespace fs {
 #endif
 	}
 
+	void SetCertsDir(const std::string & cmdline_certsdir) {
+		if (cmdline_certsdir != "")
+		{
+			if (cmdline_certsdir[cmdline_certsdir.length()-1] == '/')
+				certsDir = cmdline_certsdir.substr(0, cmdline_certsdir.size()-1); // strip trailing slash
+			else
+				certsDir = cmdline_certsdir;
+		}
+		else
+		{
+			certsDir = i2p::fs::DataDirPath("certificates");
+		}
+		return;
+	}
+
 	bool Init() {
 		if (!boost::filesystem::exists(dataDir))
 			boost::filesystem::create_directory(dataDir);
diff --git a/libi2pd/FS.h b/libi2pd/FS.h
index f07ee35c..d51aa955 100644
--- a/libi2pd/FS.h
+++ b/libi2pd/FS.h
@@ -75,6 +75,9 @@ namespace fs {
 	/** @brief Returns datadir path */
 	const std::string & GetDataDir();
 
+	/** @brief Returns certsdir path */
+	const std::string & GetCertsDir();
+
 	/** @brief Returns datadir path in UTF-8 encoding */
 	const std::string GetUTF8DataDir();
 
@@ -90,7 +93,20 @@ namespace fs {
 	 *   Mac: /Library/Application Support/i2pd/ or ~/Library/Application Support/i2pd/
 	 *   Unix: /var/lib/i2pd/ (system=1) >> ~/.i2pd/ or /tmp/i2pd/
 	 */
-	void DetectDataDir(const std::string & cmdline_datadir, bool isService = false);
+	 void DetectDataDir(const std::string & cmdline_datadir, bool isService = false);
+
+	/**
+	 * @brief Set certsdir either from cmdline option or using autodetection
+	 * @param cmdline_param  Value of cmdline parameter --certsdir=<something>
+	 *
+	 * Examples of autodetected paths:
+	 *
+	 *   Windows < Vista: C:\Documents and Settings\Username\Application Data\i2pd\certificates
+	 *   Windows >= Vista: C:\Users\Username\AppData\Roaming\i2pd\certificates
+	 *   Mac: /Library/Application Support/i2pd/ or ~/Library/Application Support/i2pd/certificates
+	 *   Unix: /var/lib/i2pd/certificates (system=1) >> ~/.i2pd/ or /tmp/i2pd/certificates
+	 */
+	 void SetCertsDir(const std::string & cmdline_certsdir);
 
 	/**
 	 * @brief Create subdirectories inside datadir
diff --git a/libi2pd/Family.cpp b/libi2pd/Family.cpp
index f37a5f54..a6f0e2ee 100644
--- a/libi2pd/Family.cpp
+++ b/libi2pd/Family.cpp
@@ -99,13 +99,7 @@ namespace data
 
 	void Families::LoadCertificates ()
 	{
-		std::string certDir;
-		std::string certsdir; i2p::config::GetOption("certsdir", certsdir);
-		if (!i2p::config::IsDefault("certsdir"))
-			certDir = certsdir + i2p::fs::dirSep + "family";
-
-		if (certDir.empty() || !i2p::fs::Exists(certDir))
-			certDir = i2p::fs::DataDirPath("certificates", "family");
+		std::string certDir = i2p::fs::GetCertsDir() + i2p::fs::dirSep + "family";
 
 		std::vector<std::string> files;
 		int numCertificates = 0;
diff --git a/libi2pd/Reseed.cpp b/libi2pd/Reseed.cpp
index 482506b2..aec683d4 100644
--- a/libi2pd/Reseed.cpp
+++ b/libi2pd/Reseed.cpp
@@ -497,13 +497,7 @@ namespace data
 
 	void Reseeder::LoadCertificates ()
 	{
-		std::string certDir;
-		std::string certsdir; i2p::config::GetOption("certsdir", certsdir);
-		if (!i2p::config::IsDefault("certsdir"))
-			certDir = certsdir + i2p::fs::dirSep + "reseed";
-
-		if (certDir.empty() || !i2p::fs::Exists(certDir))
-			certDir = i2p::fs::DataDirPath("certificates", "reseed");
+		std::string certDir = i2p::fs::GetCertsDir() + i2p::fs::dirSep + "reseed";
 
 		std::vector<std::string> files;
 		int numCertificates = 0;