diff --git a/source/src/console.cpp b/source/src/console.cpp
index 5e23f918..54b99f9a 100644
--- a/source/src/console.cpp
+++ b/source/src/console.cpp
@@ -105,7 +105,7 @@ int rendercommand(int x, int y, int w)
     int width, height;
     text_bounds(s, width, height, w);
     y -= height - FONTH;
-    draw_text(s, x, y, 0xFF, 0xFF, 0xFF, 0xFF, cmdline.pos>=0 ? cmdline.pos+2 : strlen(s), w);
+    draw_text(s, x, y, 0xFF, 0xFF, 0xFF, 0xFF, cmdline.pos>=0 ? cmdline.pos+2 : (int)strlen(s), w);
     return height;
 }
 
diff --git a/source/src/protocol.cpp b/source/src/protocol.cpp
index b419c4a5..69459f39 100644
--- a/source/src/protocol.cpp
+++ b/source/src/protocol.cpp
@@ -168,7 +168,7 @@ const char *genpwdhash(const char *name, const char *pwd, int salt)
     static string temp;
     s_sprintf(temp)("%s %d %s %s %d", pwd, salt, name, pwd, PROTOCOL_VERSION);
     tiger::hashval hash;
-    tiger::hash((uchar *)temp, strlen(temp), hash);
+    tiger::hash((uchar *)temp, (int)strlen(temp), hash);
     s_sprintf(temp)("%llx %llx %llx", hash.chunks[0], hash.chunks[1], hash.chunks[2]);
     return temp;
 }
diff --git a/source/src/rendermodel.cpp b/source/src/rendermodel.cpp
index 16507333..92f39cf1 100644
--- a/source/src/rendermodel.cpp
+++ b/source/src/rendermodel.cpp
@@ -658,12 +658,12 @@ static cvector playerskinlist;
 const char *getclientskin(const char *name, const char *suf)
 {
     static string tmp;
-    int suflen = strlen(suf), namelen = strlen(name);
+    int suflen = (int)strlen(suf), namelen = (int)strlen(name);
     const char *s, *r = NULL;
     loopv(playerskinlist)
     {
         s = playerskinlist[i];
-        int sl = strlen(s) - suflen;
+        int sl = (int)strlen(s) - suflen;
         if(sl > 0 && !strcmp(s + sl, suf))
         {
             if(!strncmp(name, s, namelen)) return s; // exact match
diff --git a/source/src/server.cpp b/source/src/server.cpp
index 75918437..7a54f2ba 100644
--- a/source/src/server.cpp
+++ b/source/src/server.cpp
@@ -2260,7 +2260,7 @@ void welcomepacket(ucharbuf &p, int n, ENetPacket *packet, bool forcedeath)
         { \
            enet_packet_resize(packet, packet->dataLength + max(MAXTRANS, space - p.remaining())); \
            p.buf = packet->data; \
-           p.maxlen = packet->dataLength; \
+           p.maxlen = (int)packet->dataLength; \
         } \
     }
 
@@ -2369,7 +2369,7 @@ void welcomepacket(ucharbuf &p, int n, ENetPacket *packet, bool forcedeath)
     putint(p, autoteam ? 1 : 0);
     if(motd)
     {
-        CHECKSPACE(5+2*strlen(motd)+1);
+        CHECKSPACE(5+2*(int)strlen(motd)+1);
         putint(p, SV_TEXT);
         sendstring(motd, p);
     }