diff --git a/java/dexpreopt_config.go b/java/dexpreopt_config.go
index 0ab6502..9eb3f49 100644
--- a/java/dexpreopt_config.go
+++ b/java/dexpreopt_config.go
@@ -84,26 +84,26 @@
 		artModules := global.ArtApexJars
 		frameworkModules := global.BootJars.RemoveList(artModules)
 
-		artSubdir := "apex/art_boot_images/javalib"
+		artDirOnHost := "apex/art_boot_images/javalib"
 		frameworkSubdir := "system/framework"
 
 		// ART config for the primary boot image in the ART apex.
 		// It includes the Core Libraries.
 		artCfg := bootImageConfig{
-			name:          artBootImageName,
-			stem:          "boot",
-			installSubdir: artSubdir,
-			modules:       artModules,
+			name:             artBootImageName,
+			stem:             "boot",
+			installDirOnHost: artDirOnHost,
+			modules:          artModules,
 		}
 
 		// Framework config for the boot image extension.
 		// It includes framework libraries and depends on the ART config.
 		frameworkCfg := bootImageConfig{
-			extends:       &artCfg,
-			name:          frameworkBootImageName,
-			stem:          "boot",
-			installSubdir: frameworkSubdir,
-			modules:       frameworkModules,
+			extends:          &artCfg,
+			name:             frameworkBootImageName,
+			stem:             "boot",
+			installDirOnHost: frameworkSubdir,
+			modules:          frameworkModules,
 		}
 
 		configs := map[string]*bootImageConfig{
@@ -130,11 +130,11 @@
 			// Create target-specific variants.
 			for _, target := range targets {
 				arch := target.Arch.ArchType
-				imageDir := c.dir.Join(ctx, target.Os.String(), c.installSubdir, arch.String())
+				imageDir := c.dir.Join(ctx, target.Os.String(), c.installDirOnHost, arch.String())
 				variant := &bootImageVariant{
 					bootImageConfig: c,
 					target:          target,
-					images:          imageDir.Join(ctx, imageName),
+					imagePathOnHost: imageDir.Join(ctx, imageName),
 					imagesDeps:      c.moduleFiles(ctx, imageDir, ".art", ".oat", ".vdex"),
 					dexLocations:    c.modules.DevicePaths(ctx.Config(), target.Os),
 				}
@@ -148,7 +148,7 @@
 		// specific to the framework config
 		frameworkCfg.dexPathsDeps = append(artCfg.dexPathsDeps, frameworkCfg.dexPathsDeps...)
 		for i := range targets {
-			frameworkCfg.variants[i].primaryImages = artCfg.variants[i].images
+			frameworkCfg.variants[i].primaryImages = artCfg.variants[i].imagePathOnHost
 			frameworkCfg.variants[i].dexLocationsDeps = append(artCfg.variants[i].dexLocations, frameworkCfg.variants[i].dexLocationsDeps...)
 		}