diff --git a/mkhelper/depgen/fortran.py b/mkhelper/depgen/fortran.py
index 92ac1bd..b9840c7 100644
--- a/mkhelper/depgen/fortran.py
+++ b/mkhelper/depgen/fortran.py
@@ -53,6 +53,13 @@ class Parser:
         r"^\s*use(?:\s+|(?:\s*,\s*((?:non_)?intrinsic))?\s*::\s*)(\w+)", re.I
     )
     _re_module_end = re.compile(r"^\s*end\s+module(?:\s+(\w+))?\s*$", re.I)
+    _re_module_subprogram = re.compile(
+        r"^(?!['\"]).*"
+        r"module"
+        r"\s+(?:(?:elemental|recursive|(?:im)?pure)\s+)*"
+        r"(?:subroutine|function)",
+        re.I,
+    )
 
     def __init__(
         self,
@@ -84,6 +91,7 @@ def __init__(
         self.module_start_callback = None
         self.submodule_start_callback = None
         self.module_use_callback = None
+        self.module_subprogram_callback = None
         self.debug_callback = None
 
         self._include_finder = IncludeFinder(include_order, include_dirs)