diff --git a/recipes/soxr/all/conanfile.py b/recipes/soxr/all/conanfile.py
index 505e7d5e58fc6..e075ec16e3d7e 100644
--- a/recipes/soxr/all/conanfile.py
+++ b/recipes/soxr/all/conanfile.py
@@ -1,3 +1,4 @@
+import itertools
 import os
 from conans import ConanFile, CMake, tools
 
@@ -23,7 +24,7 @@ class SoxrConan(ConanFile):
         "with_lsr_bindings": True
     }
     generators = "cmake"
-    exports_sources = ["patches/**", "licenses/**"]
+    exports_sources = "patches/**"
 
     _cmake = None
 
@@ -69,9 +70,17 @@ def build(self):
         cmake = self._configure_cmake()
         cmake.build()
 
+    def _extract_pffft_license(self):
+        # extract license header from pffft.c and store it in the package folder
+        with open(os.path.join(self._source_subfolder, "src", "pffft.c"), "r") as f:
+            # the license header starts in line 3 and ends in line 55
+            lines = map(lambda line: line.lstrip("/* "), itertools.islice(f, 3, 55))
+            with open(os.path.join(self.package_folder, "licenses", "pffft"), "w") as f2:
+                f2.writelines(lines)
+
     def package(self):
         self.copy("LICENCE", dst="licenses", src=self._source_subfolder)
-        self.copy("licenses/pffft", dst="licenses", keep_path=False)
+        self._extract_pffft_license()
         cmake = self._configure_cmake()
         cmake.install()
         tools.rmdir(os.path.join(self.package_folder, "doc"))
diff --git a/recipes/soxr/all/licenses/pffft b/recipes/soxr/all/licenses/pffft
deleted file mode 100644
index fa3a3618b1562..0000000000000
--- a/recipes/soxr/all/licenses/pffft
+++ /dev/null
@@ -1,52 +0,0 @@
-Copyright (c) 2013  Julien Pommier ( pommier@modartt.com )
-
-Based on original fortran 77 code from FFTPACKv4 from NETLIB
-(http://www.netlib.org/fftpack), authored by Dr Paul Swarztrauber
-of NCAR, in 1985.
-
-As confirmed by the NCAR fftpack software curators, the following
-FFTPACKv5 license applies to FFTPACKv4 sources. My changes are
-released under the same terms.
-
-FFTPACK license:
-
-http://www.cisl.ucar.edu/css/software/fftpack5/ftpk.html
-
-Copyright (c) 2004 the University Corporation for Atmospheric
-Research ("UCAR"). All rights reserved. Developed by NCAR's
-Computational and Information Systems Laboratory, UCAR,
-www.cisl.ucar.edu.
-
-Redistribution and use of the Software in source and binary forms,
-with or without modification, is permitted provided that the
-following conditions are met:
-
-- Neither the names of NCAR's Computational and Information Systems
-Laboratory, the University Corporation for Atmospheric Research,
-nor the names of its sponsors or contributors may be used to
-endorse or promote products derived from this Software without
-specific prior written permission.
-
-- Redistributions of source code must retain the above copyright
-notices, this list of conditions, and the disclaimer below.
-
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions, and the disclaimer below in the
-documentation and/or other materials provided with the
-distribution.
-
-THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT
-HOLDERS BE LIABLE FOR ANY CLAIM, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
-SOFTWARE.
-
-
-PFFFT : a Pretty Fast FFT.
-
-This file is largerly based on the original FFTPACK implementation, modified in
-order to take advantage of SIMD instructions of modern CPUs.