diff --git a/configure.ac b/configure.ac
index 68df2bf..7c516f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,8 +22,8 @@
 AX_APPEND_COMPILE_FLAGS([-fpic -Wall -Werror], [CXXFLAGS])
 
 # Checks for header files.
-AC_CHECK_HEADER(sdbusplus/server.hpp, ,[AC_MSG_ERROR([Could not find sdbusplus/server.hpp...sdbusplus developement package required])])
-AC_CHECK_HEADER(experimental/filesystem, ,[AC_MSG_ERROR([Could not find experimental/filesystem...libstdc++fs developement package required])])
+AC_CHECK_HEADER(sdbusplus/server.hpp, ,[AC_MSG_ERROR([Could not find sdbusplus/server.hpp...sdbusplus development package required])])
+AC_CHECK_HEADER(experimental/filesystem, ,[AC_MSG_ERROR([Could not find experimental/filesystem...libstdc++fs development package required])])
 
 # Checks for library functions.
 LT_INIT
diff --git a/sysfs.hpp b/sysfs.hpp
index 2a22952..a203a8c 100644
--- a/sysfs.hpp
+++ b/sysfs.hpp
@@ -91,7 +91,7 @@
 
         /** @brief Perform formatted hwmon sysfs read.
          *
-         *  Propogates any exceptions other than ENOENT.
+         *  Propagates any exceptions other than ENOENT.
          *  ENOENT will result in a call to exit(0) in case
          *  the underlying hwmon driver is unbound and
          *  the program is inadvertently left running.
@@ -116,7 +116,7 @@
 
         /** @brief Perform formatted hwmon sysfs write.
          *
-         *  Propogates any exceptions other than ENOENT.
+         *  Propagates any exceptions other than ENOENT.
          *  ENOENT will result in a call to exit(0) in case
          *  the underlying hwmon driver is unbound and
          *  the program is inadvertently left running.