diff --git a/memcheck/tests/Makefile.am b/memcheck/tests/Makefile.am
index 1dddde37e..4e52ee0e9 100644
--- a/memcheck/tests/Makefile.am
+++ b/memcheck/tests/Makefile.am
@@ -443,8 +443,6 @@ origin6_fp_CFLAGS	= $(AM_CFLAGS) -O
 # because then we can't intercept it
 overlap_CFLAGS		= $(AM_CFLAGS) -fno-builtin-memcpy -fno-builtin-strcpy
 
-pdb_realloc_CFLAGS	= $(AM_CFLAGS) @FLAG_W_NO_UNINITIALIZED@
-
 str_tester_CFLAGS	= $(AM_CFLAGS) -Wno-shadow
 
 supp_CFLAGS             = $(AM_CFLAGS) @FLAG_W_NO_UNINITIALIZED@
diff --git a/memcheck/tests/pdb-realloc.c b/memcheck/tests/pdb-realloc.c
index fbb13c741..810f7b257 100644
--- a/memcheck/tests/pdb-realloc.c
+++ b/memcheck/tests/pdb-realloc.c
@@ -12,7 +12,7 @@
 
 int main(void)
 {
-   int i, t;
+   int i, t = 0;
    char* x = malloc(1000);
 
    // Write some PDBs (partially defined bytes)
@@ -26,6 +26,8 @@ int main(void)
    for (i = 0; i < 1000; i++)
       t += x[i];
    
+   __asm__ __volatile__ ("" :: "r"(t));
+
    return 0;
 }