diff --git a/mp/src/utils/vrad/vrad.cpp b/mp/src/utils/vrad/vrad.cpp
index 854956ec..8100dc3f 100644
--- a/mp/src/utils/vrad/vrad.cpp
+++ b/mp/src/utils/vrad/vrad.cpp
@@ -93,7 +93,7 @@ bool g_bOnlyStaticProps = false;
 bool g_bShowStaticPropNormals = false;
 
 
-float		gamma = 0.5;
+float		gamma_value = 0.5;
 float		indirect_sun = 1.0;
 float		reflectivityScale = 1.0;
 qboolean	do_extra = true;
diff --git a/mp/src/utils/vrad/vrad.h b/mp/src/utils/vrad/vrad.h
index b9dc0a3f..b39d66c8 100644
--- a/mp/src/utils/vrad/vrad.h
+++ b/mp/src/utils/vrad/vrad.h
@@ -336,7 +336,7 @@ extern dface_t *g_pFaces;
 extern bool g_bMPIProps;
 
 extern	byte	nodehit[MAX_MAP_NODES];
-extern  float	gamma;
+extern  float	gamma_value;
 extern	float	indirect_sun;
 extern	float	smoothing_threshold;
 extern	int		dlight_map;
diff --git a/sp/src/utils/vrad/vrad.cpp b/sp/src/utils/vrad/vrad.cpp
index 854956ec..8100dc3f 100644
--- a/sp/src/utils/vrad/vrad.cpp
+++ b/sp/src/utils/vrad/vrad.cpp
@@ -93,7 +93,7 @@ bool g_bOnlyStaticProps = false;
 bool g_bShowStaticPropNormals = false;
 
 
-float		gamma = 0.5;
+float		gamma_value = 0.5;
 float		indirect_sun = 1.0;
 float		reflectivityScale = 1.0;
 qboolean	do_extra = true;
diff --git a/sp/src/utils/vrad/vrad.h b/sp/src/utils/vrad/vrad.h
index b9dc0a3f..b39d66c8 100644
--- a/sp/src/utils/vrad/vrad.h
+++ b/sp/src/utils/vrad/vrad.h
@@ -336,7 +336,7 @@ extern dface_t *g_pFaces;
 extern bool g_bMPIProps;
 
 extern	byte	nodehit[MAX_MAP_NODES];
-extern  float	gamma;
+extern  float	gamma_value;
 extern	float	indirect_sun;
 extern	float	smoothing_threshold;
 extern	int		dlight_map;