diff --git a/rpcs3/Emu/RSX/Program/GLSLCommon.cpp b/rpcs3/Emu/RSX/Program/GLSLCommon.cpp
index c7684e9818..4701d5dcec 100644
--- a/rpcs3/Emu/RSX/Program/GLSLCommon.cpp
+++ b/rpcs3/Emu/RSX/Program/GLSLCommon.cpp
@@ -954,7 +954,7 @@ namespace glsl
 					"	else if (actual_step.x < uv_step.x)\n"
 					"	{\n"
 					"		// Upscale in X\n"
-					"		factor = frac(normalized_coords.x * image_size.x);\n"
+					"		factor = fract(normalized_coords.x * image_size.x);\n"
 					"		a = mix(sample0, sample1, factor);\n"
 					"		b = mix(sample2, sample3, factor);\n"
 					"	}\n"
@@ -974,7 +974,7 @@ namespace glsl
 					"	else if (actual_step.y < uv_step.y)\n"
 					"	{\n"
 					"		// Upscale in Y\n"
-					"		factor = frac(normalized_coords.y * image_size.y);\n"
+					"		factor = fract(normalized_coords.y * image_size.y);\n"
 					"		return mix(a, b, factor);\n"
 					"	}\n"
 					"	else\n"