diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h
index d13e60b..c404926 100644
--- a/include/dahdi/kernel.h
+++ b/include/dahdi/kernel.h
@@ -1404,6 +1404,17 @@ static inline short dahdi_txtone_nextsample(struct dahdi_chan *ss)
 /*! Maximum audio mask */
 #define DAHDI_FORMAT_AUDIO_MASK	((1 << 16) - 1)
 
+#ifdef RHEL_RELEASE_VERSION
+#    if RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6, 5)
+#        ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+static inline void *PDE_DATA(const struct inode *inode)
+{
+	return PDE(inode)->data;
+}
+#        endif
+#   endif
+#else
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
 #ifdef CONFIG_PROC_FS
 #include <linux/proc_fs.h>
@@ -1412,6 +1423,7 @@ static inline void *PDE_DATA(const struct inode *inode)
 	return PDE(inode)->data;
 }
 #endif
+#endif
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
 #define KERN_CONT ""
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27)