diff --git a/src/libfetchers/git.cc b/src/libfetchers/git.cc
index 671779f84..4d4bf6cd6 100644
--- a/src/libfetchers/git.cc
+++ b/src/libfetchers/git.cc
@@ -402,7 +402,8 @@ struct GitInputScheme : InputScheme
                 logger->pause();
                 Finally restoreLogger([]() { logger->resume(); });
                 runProgram("git", true,
-                    { "-C", *root, "--git-dir", gitDir, "commit", std::string(path.rel()), "-m", *commitMsg });
+                    { "-C", *root, "--git-dir", gitDir, "commit", std::string(path.rel()), "-F", "-" },
+                    *commitMsg);
             }
         }
     }