diff --git a/src/video/SDL_gamma.c b/src/video/SDL_gamma.c
index 3ae13c109..f195cf7f0 100644
--- a/src/video/SDL_gamma.c
+++ b/src/video/SDL_gamma.c
@@ -33,6 +33,7 @@ static char rcsid =
 #include <math.h>
 #endif
 #include <stdlib.h>
+#include <string.h>
 
 #include "SDL_error.h"
 #include "SDL_sysvideo.h"
diff --git a/src/video/fbcon/SDL_fbelo.c b/src/video/fbcon/SDL_fbelo.c
index 046f5b561..2f1946ddd 100644
--- a/src/video/fbcon/SDL_fbelo.c
+++ b/src/video/fbcon/SDL_fbelo.c
@@ -29,6 +29,7 @@ static char rcsid =
 #include <unistd.h>
 #include <sys/time.h>
 #include <ctype.h>
+#include <string.h>
 
 #include "SDL_fbvideo.h"
 #include "SDL_fbelo.h"