diff --git a/README.md b/README.md
index 2a31a07e..100673d6 100644
--- a/README.md
+++ b/README.md
@@ -331,8 +331,6 @@ OPTIONS:
         --remap-path-prefix
             Use --remap-path-prefix for workspace root
 
-            Note that this does not fully compatible with doctest.
-
         --include-ffi
             Include coverage of C/C++ code linked to Rust library/binary
 
diff --git a/docs/cargo-llvm-cov-report.txt b/docs/cargo-llvm-cov-report.txt
index 5c26ac3a..a554ee6c 100644
--- a/docs/cargo-llvm-cov-report.txt
+++ b/docs/cargo-llvm-cov-report.txt
@@ -185,8 +185,6 @@ OPTIONS:
         --remap-path-prefix
             Use --remap-path-prefix for workspace root
 
-            Note that this does not fully compatible with doctest.
-
         --include-ffi
             Include coverage of C/C++ code linked to Rust library/binary
 
diff --git a/docs/cargo-llvm-cov-run.txt b/docs/cargo-llvm-cov-run.txt
index d7412050..1606c054 100644
--- a/docs/cargo-llvm-cov-run.txt
+++ b/docs/cargo-llvm-cov-run.txt
@@ -225,8 +225,6 @@ OPTIONS:
         --remap-path-prefix
             Use --remap-path-prefix for workspace root
 
-            Note that this does not fully compatible with doctest.
-
         --include-ffi
             Include coverage of C/C++ code linked to Rust library/binary
 
diff --git a/docs/cargo-llvm-cov-show-env.txt b/docs/cargo-llvm-cov-show-env.txt
index a1d35259..0cd445fc 100644
--- a/docs/cargo-llvm-cov-show-env.txt
+++ b/docs/cargo-llvm-cov-show-env.txt
@@ -54,8 +54,6 @@ OPTIONS:
         --remap-path-prefix
             Use --remap-path-prefix for workspace root
 
-            Note that this does not fully compatible with doctest.
-
         --include-ffi
             Include coverage of C/C++ code linked to Rust library/binary
 
diff --git a/docs/cargo-llvm-cov-test.txt b/docs/cargo-llvm-cov-test.txt
index 98473c1d..3fa8c68d 100644
--- a/docs/cargo-llvm-cov-test.txt
+++ b/docs/cargo-llvm-cov-test.txt
@@ -281,8 +281,6 @@ OPTIONS:
         --remap-path-prefix
             Use --remap-path-prefix for workspace root
 
-            Note that this does not fully compatible with doctest.
-
         --include-ffi
             Include coverage of C/C++ code linked to Rust library/binary
 
diff --git a/docs/cargo-llvm-cov.txt b/docs/cargo-llvm-cov.txt
index 181a36b5..daa840e3 100644
--- a/docs/cargo-llvm-cov.txt
+++ b/docs/cargo-llvm-cov.txt
@@ -279,8 +279,6 @@ OPTIONS:
         --remap-path-prefix
             Use --remap-path-prefix for workspace root
 
-            Note that this does not fully compatible with doctest.
-
         --include-ffi
             Include coverage of C/C++ code linked to Rust library/binary
 
diff --git a/src/cli.rs b/src/cli.rs
index 540a1f2a..1b7751c8 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -71,8 +71,6 @@ pub(crate) struct Args {
     pub(crate) verbose: u8,
 
     /// Use --remap-path-prefix for workspace root
-    ///
-    /// Note that this does not fully compatible with doctest.
     pub(crate) remap_path_prefix: bool,
 
     /// Show coverage of the specified dependency instead of the crates in the current workspace.
diff --git a/src/main.rs b/src/main.rs
index b9091ae9..3e355379 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -300,6 +300,11 @@ fn set_env(cx: &Context, env: &mut dyn EnvTarget, IsNextest(is_nextest): IsNexte
             cx.ws.config.rustdocflags(&cx.ws.target_for_config)?.unwrap_or_default();
         {
             push_common_flags(cx, &mut rustdocflags);
+            // https://github.com/rust-lang/rust/pull/155307
+            if cx.args.remap_path_prefix {
+                rustdocflags.push("--remap-path-prefix");
+                rustdocflags.push(format!("{}/=", cx.ws.metadata.workspace_root));
+            }
             // flags needed for doctest coverage.
             // https://doc.rust-lang.org/nightly/rustc/instrument-coverage.html#including-doc-tests
             rustdocflags.push("-Z");