diff --git a/src/RageSoundPosMap.cpp b/src/RageSoundPosMap.cpp
index d073666fe8..58eb7ff0d6 100644
--- a/src/RageSoundPosMap.cpp
+++ b/src/RageSoundPosMap.cpp
@@ -5,6 +5,7 @@
 #include "RageTimer.h"
 #include "Foreach.h"
 
+#include <limits.h>
 #include <list>
 
 /* The number of frames we should keep pos_map data for.  This being too high
diff --git a/src/RageSoundReader_ChannelSplit.cpp b/src/RageSoundReader_ChannelSplit.cpp
index 7bc0e821ae..e00f2ece65 100644
--- a/src/RageSoundReader_ChannelSplit.cpp
+++ b/src/RageSoundReader_ChannelSplit.cpp
@@ -39,6 +39,8 @@
 #include "RageSoundMixBuffer.h"
 #include "RageSoundUtil.h"
 #include "Foreach.h"
+
+#include <limits.h>
 #include <set>
 
 class RageSoundReader_Split;
diff --git a/src/RageSurface.cpp b/src/RageSurface.cpp
index fd586849b9..b765797556 100644
--- a/src/RageSurface.cpp
+++ b/src/RageSurface.cpp
@@ -2,6 +2,8 @@
 #include "RageSurface.h"
 #include "RageUtil.h"
 
+#include <limits.h>
+
 bool RageSurfaceColor::operator== ( const RageSurfaceColor &rhs ) const
 {
 	return rhs.r == r && rhs.g == g && rhs.b == b && rhs.a == a;