diff --git a/src/Font.cpp b/src/Font.cpp
index 0cc70aa2..2ee207b4 100644
--- a/src/Font.cpp
+++ b/src/Font.cpp
@@ -1707,7 +1707,7 @@ FontObject* LoadFontFromData(const unsigned char *data, size_t data_size, unsign
 	font_object->data = (unsigned char*)malloc(data_size);
 	memcpy(font_object->data, data, data_size);
 
-	FT_Error error = FT_New_Memory_Face(font_object->library, font_object->data, data_size, 0, &font_object->face);
+	FT_Error error = FT_New_Memory_Face(font_object->library, font_object->data, (FT_Long)data_size, 0, &font_object->face);
 
 	if (error)
 	{
diff --git a/src/MapName.cpp b/src/MapName.cpp
index d739e7d3..4d29389a 100644
--- a/src/MapName.cpp
+++ b/src/MapName.cpp
@@ -33,7 +33,7 @@ void ReadyMapName(const char *str)
 	strcpy(gMapName.name, str);
 	
 	//Draw the text to the surface
-	int len = strlen(gMapName.name);
+	int len = (int)strlen(gMapName.name);
 	
 	CortBox2(&rc, 0, SURFACE_ID_ROOM_NAME);
 	PutText2((-6 * len + 160) / 2 + 6, 1, gMapName.name, RGB(0x11, 0x00, 0x22), SURFACE_ID_ROOM_NAME);
@@ -66,7 +66,7 @@ void StartMapName()
 
 void RestoreMapName()
 {
-	int len = strlen(gMapName.name);
+	int len = (int)strlen(gMapName.name);
 	
 	CortBox2(&rc, 0, SURFACE_ID_ROOM_NAME);
 	PutText2((-6 * len + 160) / 2 + 6, 1, gMapName.name, RGB(0x11, 0x00, 0x22), SURFACE_ID_ROOM_NAME);
diff --git a/src/Resource.cpp b/src/Resource.cpp
index bde9f45c..14c11b9d 100644
--- a/src/Resource.cpp
+++ b/src/Resource.cpp
@@ -427,7 +427,7 @@ SDL_RWops* FindResource(const char *name)
 	if (!resource)
 		return NULL;
 	
-	SDL_RWops *fp = SDL_RWFromConstMem(resource, resSize);
+	SDL_RWops *fp = SDL_RWFromConstMem(resource, (int)resSize);
 	
 	if (!fp)
 	{
diff --git a/src/TextScr.cpp b/src/TextScr.cpp
index 6b648f7a..2b07d503 100644
--- a/src/TextScr.cpp
+++ b/src/TextScr.cpp
@@ -375,7 +375,7 @@ void SetNumberTextScript(int index)
 	gTS.wait_beam = 0;
 
 	//Check if should move to next line (prevent a memory overflow, come on guys, this isn't a leftover of pixel trying to make text wrapping)
-	gTS.p_write += strlen(str);
+	gTS.p_write += (unsigned int)strlen(str);
 
 	if (gTS.p_write >= 35)
 	{