diff --git a/Source/Core/VideoCommon/TextureCacheBase.cpp b/Source/Core/VideoCommon/TextureCacheBase.cpp
index 0f66284180..5153ed8dba 100644
--- a/Source/Core/VideoCommon/TextureCacheBase.cpp
+++ b/Source/Core/VideoCommon/TextureCacheBase.cpp
@@ -2685,7 +2685,8 @@ void TextureCacheBase::CopyEFBToCacheEntry(TCacheEntry* entry, bool is_depth_cop
   uniforms.filter_coefficients[2] = filter_coefficients.lower;
   uniforms.gamma_rcp = 1.0f / gamma;
   uniforms.clamp_top = clamp_top ? framebuffer_rect.top * rcp_efb_height : 0.0f;
-  uniforms.clamp_bottom = clamp_bottom ? framebuffer_rect.bottom * rcp_efb_height : 1.0f;
+  int bottom_coord = framebuffer_rect.bottom - 1;
+  uniforms.clamp_bottom = clamp_bottom ? bottom_coord * rcp_efb_height : 1.0f;
   uniforms.pixel_height = g_ActiveConfig.bCopyEFBScaled ? rcp_efb_height : 1.0f / EFB_HEIGHT;
   uniforms.padding = 0;
   g_vertex_manager->UploadUtilityUniforms(&uniforms, sizeof(uniforms));
@@ -2750,7 +2751,8 @@ void TextureCacheBase::CopyEFB(AbstractStagingTexture* dst, const EFBCopyParams&
   encoder_params.y_scale = y_scale;
   encoder_params.gamma_rcp = 1.0f / gamma;
   encoder_params.clamp_top = clamp_top ? framebuffer_rect.top * rcp_efb_height : 0.0f;
-  encoder_params.clamp_bottom = clamp_bottom ? framebuffer_rect.bottom * rcp_efb_height : 1.0f;
+  int bottom_coord = framebuffer_rect.bottom - 1;
+  encoder_params.clamp_bottom = clamp_bottom ? bottom_coord * rcp_efb_height : 1.0f;
   encoder_params.filter_coefficients[0] = filter_coefficients.upper;
   encoder_params.filter_coefficients[1] = filter_coefficients.middle;
   encoder_params.filter_coefficients[2] = filter_coefficients.lower;