diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4072796a..907d3582 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,7 @@ find_package (PkgConfig REQUIRED)
 
 # Force a libmraa search and minimum required version every time a config is generated
 unset(MRAA_FOUND CACHE)
-pkg_check_modules (MRAA REQUIRED mraa>=0.9.1)
+pkg_check_modules (MRAA REQUIRED mraa>=1.0.0)
 message (INFO " found mraa version: ${MRAA_VERSION}")
 
 # Appends the cmake/modules path to MAKE_MODULE_PATH variable.
diff --git a/src/grove/grove.cxx b/src/grove/grove.cxx
index 99733de8..b0be12d8 100644
--- a/src/grove/grove.cxx
+++ b/src/grove/grove.cxx
@@ -129,7 +129,7 @@ int GroveTemp::value ()
 {
     float a = (float) mraa_aio_read(m_aio);
     if (a == -1.0) return -1;
-    // Apply scale factore after error check
+    // Apply scale factor after error check
     a *= m_scale;
     float r = (float)(1023.0-a)*10000.0/a;
     float t = 1.0/(log(r/10000.0)/3975.0 + 1.0/298.15)-273.15;