diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2111603..ae8f6e6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -101,6 +101,9 @@ target_link_libraries(nnet2f32 lpcnetfreedv m)
 add_executable(sw2packedulaw sw2packedulaw.c)
 target_link_libraries(sw2packedulaw lpcnetfreedv m)
 
+add_executable(thash thash.c)
+target_link_libraries(thash lpcnetfreedv m)
+
 install(TARGETS lpcnet_enc lpcnet_dec
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     )
diff --git a/src/lpcnet.c b/src/lpcnet.c
index 7a5119c..9f3f059 100644
--- a/src/lpcnet.c
+++ b/src/lpcnet.c
@@ -274,8 +274,3 @@ void lpcnet_synthesize(LPCNetState *lpcnet, short *output, float *features, int
     start = 0;
 }
 
-static char git_hash[] = GIT_HASH;
-char *lpcnet_get_hash(void) {
-    return git_hash;
-}
-
diff --git a/src/lpcnet_freedv.c b/src/lpcnet_freedv.c
index 823fcdc..fe154ea 100644
--- a/src/lpcnet_freedv.c
+++ b/src/lpcnet_freedv.c
@@ -80,3 +80,9 @@ void lpcnet_dec(LPCNetFreeDV *lf, char *frame, short* pcm)
 
 int lpcnet_samples_per_frame(LPCNetFreeDV *lf) { return FRAME_SIZE*lf->q->dec; } 
 int lpcnet_bits_per_frame(LPCNetFreeDV *lf) { return lf->q->bits_per_frame; } 
+
+static char git_hash[] = GIT_HASH;
+char *lpcnet_get_hash(void) {
+    return git_hash;
+}
+
diff --git a/src/thash.c b/src/thash.c
new file mode 100644
index 0000000..5b60f2e
--- /dev/null
+++ b/src/thash.c
@@ -0,0 +1,19 @@
+/*---------------------------------------------------------------------------*\
+
+  FILE........: thash.c
+  AUTHOR......: David Rowe
+  DATE CREATED: July 2020
+
+  Simple test program for LPCNet API get hash function
+
+\*---------------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include "lpcnet_freedv.h"
+
+int main(void) { 
+    printf("%s\n", lpcnet_get_hash());
+    return 0;
+}
+
+