diff --git a/OpenImageIO.spec b/OpenImageIO.spec
index a1b7f78..9a44f2b 100644
--- a/OpenImageIO.spec
+++ b/OpenImageIO.spec
@@ -156,7 +156,7 @@ mkdir build/linux && pushd build/linux
        -DINSTALL_FONTS:BOOL=FALSE \
        -DUSE_EXTERNAL_PUGIXML:BOOL=TRUE \
        -DSTOP_ON_WARNING:BOOL=FALSE \
-       -DJPEG_INCLUDE_DIR=%{_includedir} \
+       -DJPEG_INCLUDE_DIR=$(pkgconf --variable=includedir libjpeg) \
        -DOPENJPEG_INCLUDE_DIR=$(pkgconf --variable=includedir libopenjp2) \
        -DOpenGL_GL_PREFERENCE=GLVND \
        -DVERBOSE=TRUE