diff --git a/Makefile b/Makefile
index 5657b46a57..125ed2fd60 100644
--- a/Makefile
+++ b/Makefile
@@ -219,8 +219,10 @@ endif
 endif
 
 # remove the dependancy for sdl if DEDICALTED is used
+# and add -lpthread to LDFLAGS, because SDL normally adds that...
 ifdef DEDICATED
 WITH_SDL:=
+LDFLAGS+=-lpthread
 endif