diff --git a/components/cla/cla.c b/components/cla/cla.c
index a7bb542..9db0a59 100644
--- a/components/cla/cla.c
+++ b/components/cla/cla.c
@@ -41,7 +41,9 @@ const struct available_cla_list_entry AVAILABLE_CLAS[] = {
 	{ "tcpclv3", &tcpclv3_create },
 	{ "tcpspp", &tcpspp_create },
 	{ "bibe", &bibe_create },
+#ifndef DISABLE_SQLITE_STORAGE
 	{ "sqlite", &sqlite_create },
+#endif // DISABLE_SQLITE_STORAGE
 };
 
 
diff --git a/config.mk.example b/config.mk.example
index 199e6a0..7342f0d 100644
--- a/config.mk.example
+++ b/config.mk.example
@@ -46,6 +46,15 @@
 #coverage ?= no
 #coverage ?= yes
 
+###############################
+# Dependency-related settings #
+###############################
+
+# Some features can be disabled to reduce the number of dependencies.
+
+# The persistent storage implementation requires SQLite.
+#DISABLE_SQLITE_STORAGE := 1
+
 #####################
 # Toolchain options #
 #####################
diff --git a/include/agents/sqlite_agent.h b/include/agents/sqlite_agent.h
index cf55495..f4b8a37 100644
--- a/include/agents/sqlite_agent.h
+++ b/include/agents/sqlite_agent.h
@@ -8,8 +8,6 @@
 
 #include <stdint.h>
 
-#include <sqlite3.h>
-
 // Default Agent IDs.
 #ifndef AGENT_ID_SQLITE_DTN
 #define AGENT_ID_SQLITE_DTN "sqlite"
@@ -21,7 +19,7 @@
 struct sqlite_agent_params {
 	char *sink_identifier;
 	agent_no_t registered_agent_no;
-	sqlite3 *db;
+	struct sqlite3 *db;
 	QueueIdentifier_t cla_queue;
 };
 
diff --git a/include/cla/storage/cla_sqlite.h b/include/cla/storage/cla_sqlite.h
index 33bc243..da7603c 100644
--- a/include/cla/storage/cla_sqlite.h
+++ b/include/cla/storage/cla_sqlite.h
@@ -11,8 +11,6 @@
 
 #include <stddef.h>
 
-#include <sqlite3.h>
-
 // Length of the SQLiteAgent queue.
 #ifndef CLA_SQLITE_AGENT_QUEUE_LENGTH
 #define CLA_SQLITE_AGENT_QUEUE_LENGTH 10
diff --git a/include/ud3tn/cmdline.h b/include/ud3tn/cmdline.h
index 4c95bfc..2634b21 100644
--- a/include/ud3tn/cmdline.h
+++ b/include/ud3tn/cmdline.h
@@ -12,8 +12,13 @@
 
 // Default options string provided to the CLA subsystem.
 #ifndef DEFAULT_CLA_OPTIONS
+#ifndef DISABLE_SQLITE_STORAGE
 #define DEFAULT_CLA_OPTIONS \
 	"sqlite:file::memory:?cache=shared;tcpclv3:*,4556;smtcp:*,4222,false;mtcp:*,4224"
+#else // DISABLE_SQLITE_STORAGE
+#define DEFAULT_CLA_OPTIONS \
+	"tcpclv3:*,4556;smtcp:*,4222,false;mtcp:*,4224"
+#endif // DISABLE_SQLITE_STORAGE
 #endif // DEFAULT_CLA_OPTIONS
 
 // Default TCP IP/port used for the application agent interface.
diff --git a/mk/posix.mk b/mk/posix.mk
index 5bcea0d..91401de 100644
--- a/mk/posix.mk
+++ b/mk/posix.mk
@@ -40,6 +40,8 @@ LDFLAGS += -lpthread
 
 ifndef DISABLE_SQLITE_STORAGE
   LDFLAGS += -lsqlite3
+else
+  CPPFLAGS += -DDISABLE_SQLITE_STORAGE
 endif
 
 LDFLAGS_LIB += -shared