diff --git a/app/src/main/jni/netguard/netguard.c b/app/src/main/jni/netguard/netguard.c
index ebe8c4a4..2d582aa6 100644
--- a/app/src/main/jni/netguard/netguard.c
+++ b/app/src/main/jni/netguard/netguard.c
@@ -59,6 +59,19 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
     const char *rr = "eu/faircode/netguard/ResourceRecord";
     clsRR = jniGlobalRef(env, jniFindClass(env, rr));
 
+    // Raise file number limit to maximum
+    struct rlimit rlim;
+    if (getrlimit(RLIMIT_NOFILE, &rlim))
+        log_android(ANDROID_LOG_WARN, "getrlimit error %d: %s", errno, strerror(errno));
+    else {
+        rlim_t soft = rlim.rlim_cur;
+        rlim.rlim_cur = rlim.rlim_max;
+        if (setrlimit(RLIMIT_NOFILE, &rlim))
+            log_android(ANDROID_LOG_WARN, "setrlimit error %d: %s", errno, strerror(errno));
+        else
+            log_android(ANDROID_LOG_WARN, "raised file limit from %d to %d", soft, rlim.rlim_cur);
+    }
+
     return JNI_VERSION_1_6;
 }
 
diff --git a/app/src/main/jni/netguard/netguard.h b/app/src/main/jni/netguard/netguard.h
index 6ef39683..d2f851ce 100644
--- a/app/src/main/jni/netguard/netguard.h
+++ b/app/src/main/jni/netguard/netguard.h
@@ -11,6 +11,7 @@
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <dlfcn.h>
+#include <sys/resource.h>
 
 #include <netdb.h>
 #include <arpa/inet.h>
diff --git a/app/src/main/jni/netguard/session.c b/app/src/main/jni/netguard/session.c
index 911050bd..1957030a 100644
--- a/app/src/main/jni/netguard/session.c
+++ b/app/src/main/jni/netguard/session.c
@@ -59,6 +59,12 @@ void *handle_events(void *a) {
     // Get SDK version
     sdk = sdk_int(env);
 
+    struct rlimit rlim;
+    if (getrlimit(RLIMIT_NOFILE, &rlim))
+        log_android(ANDROID_LOG_WARN, "getrlimit error %d: %s", errno, strerror(errno));
+    else
+        log_android(ANDROID_LOG_WARN, "getrlimit soft %d hard %d", rlim.rlim_cur, rlim.rlim_max);
+
     // Block SIGUSR1
     sigemptyset(&blockset);
     sigaddset(&blockset, SIGUSR1);