diff --git a/docs/libpsl/libpsl-sections.txt b/docs/libpsl/libpsl-sections.txt
index 643a778..7dede1f 100644
--- a/docs/libpsl/libpsl-sections.txt
+++ b/docs/libpsl/libpsl-sections.txt
@@ -19,7 +19,6 @@ psl_registrable_domain
 psl_suffix_count
 psl_suffix_exception_count
 psl_suffix_wildcard_count
-psl_builtin_compile_time
 psl_builtin_file_time
 psl_builtin_sha1sum
 psl_builtin_filename
diff --git a/include/libpsl.h.in b/include/libpsl.h.in
index d4c781b..59fa3f6 100644
--- a/include/libpsl.h.in
+++ b/include/libpsl.h.in
@@ -125,10 +125,6 @@ int
 int
 	psl_suffix_wildcard_count(const psl_ctx_t *psl);
 
-/* returns compilation time */
-time_t
-	psl_builtin_compile_time(void);
-
 /* returns mtime of PSL source file */
 time_t
 	psl_builtin_file_time(void);
diff --git a/src/psl.c b/src/psl.c
index 49bfdbd..fb35c2f 100644
--- a/src/psl.c
+++ b/src/psl.c
@@ -185,7 +185,6 @@ struct _psl_ctx_st {
 	/* if this source file is included by psl2c.c, provide empty builtin data */
 	static const unsigned char kDafsa[1];
 	static time_t _psl_file_time;
-	static time_t _psl_compile_time;
 	static int _psl_nsuffixes;
 	static int _psl_nexceptions;
 	static int _psl_nwildcards;
@@ -1304,22 +1303,6 @@ int psl_suffix_wildcard_count(const psl_ctx_t *psl)
 		return 0;
 }
 
-/**
- * psl_builtin_compile_time:
- *
- * This function returns the time when the Publix Suffix List has been compiled into C code (by psl2c).
- *
- * If the generation of built-in data has been disabled during compilation, 0 will be returned.
- *
- * Returns: time_t value or 0.
- *
- * Since: 0.1
- */
-time_t psl_builtin_compile_time(void)
-{
-	return _psl_compile_time;
-}
-
 /**
  * psl_builtin_file_time:
  *
diff --git a/src/psl2c.c b/src/psl2c.c
index c4c280f..0cb8998 100644
--- a/src/psl2c.c
+++ b/src/psl2c.c
@@ -283,10 +283,6 @@ int main(int argc, const char **argv)
 			st.st_mtime = 0;
 		fprintf(fpout, "static time_t _psl_file_time = %lu;\n", st.st_mtime);
 
-		if ((source_date_epoch = getenv("SOURCE_DATE_EPOCH")))
-			fprintf(fpout, "static time_t _psl_compile_time = %lu;\n", atol(source_date_epoch));
-		else
-			fprintf(fpout, "static time_t _psl_compile_time = %lu;\n", time(NULL));
 		fprintf(fpout, "static int _psl_nsuffixes = %d;\n", psl->nsuffixes);
 		fprintf(fpout, "static int _psl_nexceptions = %d;\n", psl->nexceptions);
 		fprintf(fpout, "static int _psl_nwildcards = %d;\n", psl->nwildcards);
@@ -312,7 +308,6 @@ int main(int argc, const char **argv)
 	if ((fpout = fopen(argv[argpos + 1], "w"))) {
 		fprintf(fpout, "static const unsigned char kDafsa[1];\n");
 		fprintf(fpout, "static time_t _psl_file_time;\n");
-		fprintf(fpout, "static time_t _psl_compile_time;\n");
 		fprintf(fpout, "static int _psl_nsuffixes = 0;\n");
 		fprintf(fpout, "static int _psl_nexceptions = 0;\n");
 		fprintf(fpout, "static int _psl_nwildcards = 0;\n");
diff --git a/tests/test-is-public-builtin.c b/tests/test-is-public-builtin.c
index 0aa5762..70603ea 100644
--- a/tests/test-is-public-builtin.c
+++ b/tests/test-is-public-builtin.c
@@ -104,9 +104,6 @@ static void test_psl(void)
 		}
 	}
 
-	printf("psl_builtin_compile_time()=%ld\n", psl_builtin_compile_time());
-	psl_builtin_compile_time() == 0 ? failed++ : ok++;
-
 	printf("psl_builtin_file_time()=%ld\n", psl_builtin_file_time());
 	psl_builtin_file_time() == 0 ? failed++ : ok++;
 
diff --git a/tools/psl.c b/tools/psl.c
index fb3972c..4303a5b 100644
--- a/tools/psl.c
+++ b/tools/psl.c
@@ -211,7 +211,6 @@ int main(int argc, const char *const *argv)
 			printf("builtin exceptions: %d\n", psl_suffix_exception_count(psl));
 			printf("builtin wildcards: %d\n", psl_suffix_wildcard_count(psl));
 			printf("builtin filename: %s\n", psl_builtin_filename());
-			printf("builtin compile time: %ld (%s)\n", psl_builtin_compile_time(), time2str(psl_builtin_compile_time()));
 			printf("builtin file time: %ld (%s)\n", psl_builtin_file_time(), time2str(psl_builtin_file_time()));
 			printf("builtin SHA1 file hash: %s\n", psl_builtin_sha1sum());
 			printf("builtin outdated: %d\n", psl_builtin_outdated());