diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index 1b186b1e8..7f5fa25b4 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -37,4 +37,4 @@ libosmogsm_la_LIBADD = libgsmint.la
 EXTRA_DIST = libosmogsm.map
 
 conv%gen.c: ../../utils/conv_gen.py
-	$(AM_V_GEN)python ../../utils/conv_gen.py
+	$(AM_V_GEN)python2 ../../utils/conv_gen.py
diff --git a/utils/conv_gen.py b/utils/conv_gen.py
index 1377fcae7..bb547de83 100644
--- a/utils/conv_gen.py
+++ b/utils/conv_gen.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python2
 
 mod_license = """
 /*