diff --git a/cpython-unix/build-cpython.sh b/cpython-unix/build-cpython.sh
index 49c89d26..4016aaf6 100755
--- a/cpython-unix/build-cpython.sh
+++ b/cpython-unix/build-cpython.sh
@@ -858,7 +858,8 @@ def fix_shebang(full):
 
         lines.extend([
             b"#!/bin/sh\n",
-            b'"exec" "\$(dirname \$0)/python${PYTHON_MAJMIN_VERSION}${PYTHON_BINARY_SUFFIX}" "\$0" "\$@"\n',
+            b"'''exec' \"\$(dirname -- \"\$(realpath -- \"\$0\")\")/python${PYTHON_MAJMIN_VERSION}${PYTHON_BINARY_SUFFIX}\" \"\$0\" \"\$@\"\n",
+            b"' '''\n",
         ])
 
         lines.extend(fh)