diff --git a/src/Misc.cpp b/src/Misc.cpp
index 3f7e2ea2c..197e393aa 100644
--- a/src/Misc.cpp
+++ b/src/Misc.cpp
@@ -7,12 +7,14 @@
 #include "Config.h"
 #include "Misc.h"
 #include "icondoc.h"
-#if defined(WIN)
+#ifdef WIN
 #include <shlobj.h>
 #include <shlwapi.h>
 #include <windows.h>
 #else
 #include <unistd.h>
+#include <time.h>
+#include <sys/time.h>
 #endif
 #ifdef MACOSX
 #include <mach-o/dyld.h>
@@ -655,5 +657,17 @@ int splitsign(const char* str, char * type)
 	return 0;
 }
 
+void* millisleep(long int t)
+{
+#ifdef WIN
+	Sleep(t);
+#else
+	struct timespec s;
+	s.tv_sec = t/1000;
+	s.tv_nsec = (t%1000)*10000000;
+	nanosleep(&s, NULL);
+#endif
+}
+
 vector2d v2d_zero = {0,0};
 matrix2d m2d_identity = {1,0,0,1};
diff --git a/src/Misc.h b/src/Misc.h
index 1c6a9039a..4717d9e68 100644
--- a/src/Misc.h
+++ b/src/Misc.h
@@ -88,6 +88,8 @@ void membwand(void * dest, void * src, size_t destsize, size_t srcsize);
 
 int splitsign(const char* str, char * type = NULL);
 
+void* millisleep(long int t);
+
 // a b
 // c d
 
diff --git a/src/client/HTTP.cpp b/src/client/HTTP.cpp
index 531e9536c..3be85bc1c 100644
--- a/src/client/HTTP.cpp
+++ b/src/client/HTTP.cpp
@@ -52,6 +52,7 @@
 #include "Misc.h"
 #include "HTTP.h"
 #include "MD5.h"
+#include "Misc.h"
 
 #ifdef WIN
 #define PERROR SOCKET_ERROR
@@ -599,7 +600,8 @@ char *http_async_req_stop(void *ctx, int *ret, int *len)
 	char *rxd;
 
 	if (cx->state != HTS_DONE)
-		while (!http_async_req_status(ctx)) ;
+		while (!http_async_req_status(ctx))
+			millisleep(1);
 
 	if (cx->host)
 	{
diff --git a/src/client/requestbroker/RequestBroker.cpp b/src/client/requestbroker/RequestBroker.cpp
index 1516b2686..7f20c907e 100644
--- a/src/client/requestbroker/RequestBroker.cpp
+++ b/src/client/requestbroker/RequestBroker.cpp
@@ -7,6 +7,7 @@
 #include "RequestListener.h"
 #include "ThumbRenderRequest.h"
 #include "ImageRequest.h"
+#include "Misc.h"
 #include "client/Client.h"
 #include "client/GameSave.h"
 #include "graphics/Graphics.h"
@@ -233,6 +234,7 @@ void RequestBroker::thumbnailQueueProcessTH()
 			}
 		}
 		pthread_mutex_unlock(&requestQueueMutex);
+		millisleep(1);
 	}
 	pthread_mutex_lock(&runningMutex);
 	thumbnailQueueRunning = false;