diff --git a/cmd_line_main.c b/cmd_line_main.c
index 9c93703..f7c6010 100644
--- a/cmd_line_main.c
+++ b/cmd_line_main.c
@@ -33,8 +33,8 @@
 
    // This call prints out sizes of data structures to remind us
    // to keep them small.
-   PrintSizes(&fputs_wrapper, stdout);
+   PrintSizesQCBOR(&fputs_wrapper, stdout);
 
    // This runs all the tests
-   return RunTests(argv+1, &fputs_wrapper, stdout, NULL);
+   return RunTestsQCBOR(argv+1, &fputs_wrapper, stdout, NULL);
 }
diff --git a/test/run_tests.c b/test/run_tests.c
index 192e319..5b72398 100644
--- a/test/run_tests.c
+++ b/test/run_tests.c
@@ -157,7 +157,7 @@
 /*
  Public function. See run_test.h.
  */
-int RunTests(const char *szTestNames[],
+int RunTestsQCBOR(const char *szTestNames[],
              OutputStringCB pfOutput,
              void *poutCtx,
              int *pNumTestsRun)
@@ -296,7 +296,7 @@
 /*
  Public function. See run_test.h.
  */
-void PrintSizes(OutputStringCB pfOutput, void *pOutCtx)
+void PrintSizesQCBOR(OutputStringCB pfOutput, void *pOutCtx)
 {
    // These will never be large so cast is safe
    PrintSize("sizeof(QCBORTrackNesting)",   (uint32_t)sizeof(QCBORTrackNesting),  pfOutput, pOutCtx);
diff --git a/test/run_tests.h b/test/run_tests.h
index 97f2946..ce44673 100644
--- a/test/run_tests.h
+++ b/test/run_tests.h
@@ -53,10 +53,10 @@
 
  @return The number of tests that failed. Zero means overall success.
  */
-int RunTests(const char *szTestNames[],
-             OutputStringCB pfOutput,
-             void *pOutCtx,
-             int *pNumTestsRun);
+int RunTestsQCBOR(const char *szTestNames[],
+                  OutputStringCB pfOutput,
+                  void *pOutCtx,
+                  int *pNumTestsRun);
 
 
 /**
@@ -65,5 +65,5 @@
  @param[in] pfOutput     Function that is called to output text strings.
  @param[in] pOutCtx      Context pointer passed to output function.
  */
-void PrintSizes(OutputStringCB pfOutput, void *pOutCtx);
+void PrintSizesQCBOR(OutputStringCB pfOutput, void *pOutCtx);