diff --git a/pkg/fsfilters/filters.go b/pkg/fsfilters/filters.go
index 8d6b9a4..2dd8792 100644
--- a/pkg/fsfilters/filters.go
+++ b/pkg/fsfilters/filters.go
@@ -155,5 +155,16 @@ func ShouldSkipFilesystem(fsType, mountpoint string, totalBytes, usedBytes uint6
 		}
 	}
 
+	// EnhanceCP uses /var/container_tmp/{uuid}/merged for container overlays.
+	// Filter these as they're ephemeral container layers, not user storage. Related to #790.
+	if strings.Contains(mountpoint, "/container_tmp/") {
+		for _, pattern := range containerOverlayPatterns {
+			if strings.Contains(mountpoint, pattern) {
+				reasons = append(reasons, "container-overlay")
+				break
+			}
+		}
+	}
+
 	return len(reasons) > 0, reasons
 }
diff --git a/pkg/fsfilters/filters_test.go b/pkg/fsfilters/filters_test.go
index 4af2622..bb04749 100644
--- a/pkg/fsfilters/filters_test.go
+++ b/pkg/fsfilters/filters_test.go
@@ -179,6 +179,9 @@ func TestShouldSkipFilesystem(t *testing.T) {
 		{"enhance containers overlay", "ext4", "/var/local/enhance/containers/abc123/overlay/merged", 1000000, 500000, true},
 		{"custom containers diff", "ext4", "/opt/containers/myapp/diff/layer", 1000000, 500000, true},
 		{"custom containers overlay2", "ext4", "/data/containers/xyz/overlay2/layer1", 1000000, 500000, true},
+		// EnhanceCP container_tmp paths (issue #790)
+		{"enhancecp container_tmp merged", "overlay", "/var/container_tmp/0d6eaae4-1aa0-4aad-a9d9-d430329c2e38/merged", 1000000, 500000, true},
+		{"enhancecp container_tmp overlay", "overlay", "/var/container_tmp/abc123/overlay/layer", 1000000, 500000, true},
 
 		// Windows paths
 		{"Windows System Reserved", "NTFS", "System Reserved", 500 * 1024 * 1024, 100 * 1024 * 1024, true},