diff --git a/src/aiori-HDF5.c b/src/aiori-HDF5.c
index 7649be0..ba52400 100755
--- a/src/aiori-HDF5.c
+++ b/src/aiori-HDF5.c
@@ -65,7 +65,6 @@
 } while(0)
 #else                           /* ! (H5_VERS_MAJOR > 1 && H5_VERS_MINOR > 6) */
 #define HDF5_CHECK(HDF5_RETURN, MSG) do {                                \
-    char   resultString[1024];                                           \
                                                                          \
     if (HDF5_RETURN < 0) {                                               \
         fprintf(stdout, "** error **\n");                                \
diff --git a/src/aiori-NCMPI.c b/src/aiori-NCMPI.c
index e3e678f..b396b4c 100755
--- a/src/aiori-NCMPI.c
+++ b/src/aiori-NCMPI.c
@@ -32,7 +32,6 @@
  * NCMPI_CHECK will display a custom error message and then exit the program
  */
 #define NCMPI_CHECK(NCMPI_RETURN, MSG) do {                              \
-    char resultString[1024];                                             \
                                                                          \
     if (NCMPI_RETURN < 0) {                                              \
         fprintf(stdout, "** error **\n");                                \
diff --git a/src/utilities.c b/src/utilities.c
index 4b159df..9de14f4 100755
--- a/src/utilities.c
+++ b/src/utilities.c
@@ -202,8 +202,8 @@ void ExtractHint(char *settingVal, char *valueVal, char *hintString)
 {
         char *settingPtr, *valuePtr, *tmpPtr1, *tmpPtr2;
 
-        settingPtr = (char *)strtok(hintString, "=");
-        valuePtr = (char *)strtok(NULL, " \t\r\n");
+        settingPtr = (char *)strtok(hintString, " =");
+        valuePtr = (char *)strtok(NULL, " =\t\r\n");
         tmpPtr1 = settingPtr;
         tmpPtr2 = (char *)strstr(settingPtr, "IOR_HINT__MPI__");
         if (tmpPtr1 == tmpPtr2) {