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");                                \