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-rw-r--r--gnu/packages/video.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 7206bc5ef2..636f76584d 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -1057,7 +1057,7 @@ for use with HTML5 video.")
           (lambda _
             ;; Copy-paste settings from the cmake build system.
             (setenv "CMAKE_LIBRARY_PATH" (getenv "LIBRARY_PATH"))
-            (setenv "CMAKE_INCLUDE_PATH" (getenv "CPATH")))
+            (setenv "CMAKE_INCLUDE_PATH" (getenv "C_INCLUDE_PATH")))
           (alist-replace 'build
             (lambda* (#:key inputs outputs #:allow-other-keys)
               (let*