diff --git a/examples/gpu/source/main.c b/examples/gpu/source/main.c
index 17a4bee..3c177ce 100644
--- a/examples/gpu/source/main.c
+++ b/examples/gpu/source/main.c
@@ -167,8 +167,8 @@ void renderFrame()
 
 	//setup lighting (this is specific to our shader)
 		vect3Df_s lightDir=vnormf(vect3Df(cos(lightAngle), -1.0f, sin(lightAngle)));
-		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightDirection", 0), (u32*)(float[]){0.0f, -lightDir.z, -lightDir.y, -lightDir.x}, 4);
-		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightAmbient", 0), (u32*)(float[]){0.7f, 0.4f, 0.4f, 0.4f}, 4);
+		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightDirection", 0), (u32*)(float[]){0.0f, -lightDir.z, -lightDir.y, -lightDir.x}, 1);
+		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightAmbient", 0), (u32*)(float[]){0.7f, 0.4f, 0.4f, 0.4f}, 1);
 
 	//initialize projection matrix to standard perspective stuff
 	gsMatrixMode(GS_PROJECTION);
diff --git a/libctru/include/3ds/gpu/shdr.h b/libctru/include/3ds/gpu/shdr.h
index 459aa0b..02b5128 100644
--- a/libctru/include/3ds/gpu/shdr.h
+++ b/libctru/include/3ds/gpu/shdr.h
@@ -59,7 +59,7 @@ typedef struct{
 DVLB_s* SHDR_ParseSHBIN(u32* shbinData, u32 shbinSize);
 void SHDR_UseProgram(DVLB_s* dvlb, u8 id);
 void SHDR_FreeDVLB(DVLB_s* dvlb);
-s8 SHDR_GetUniformRegister(DVLB_s* dvlb, char* name, u8 programID);
+s8 SHDR_GetUniformRegister(DVLB_s* dvlb, const char* name, u8 programID);
 
 void DVLP_SendCode(DVLP_s* dvlp);
 void DVLP_SendOpDesc(DVLP_s* dvlp);
diff --git a/libctru/source/gpu/shdr.c b/libctru/source/gpu/shdr.c
index bab4166..013f17d 100644
--- a/libctru/source/gpu/shdr.c
+++ b/libctru/source/gpu/shdr.c
@@ -56,7 +56,7 @@ DVLB_s* SHDR_ParseSHBIN(u32* shbinData, u32 shbinSize)
 		return ret;
 }
 
-s8 SHDR_GetUniformRegister(DVLB_s* dvlb, char* name, u8 programID)
+s8 SHDR_GetUniformRegister(DVLB_s* dvlb, const char* name, u8 programID)
 {
 	if(!dvlb || !name)return -1;